{"title":"Tecline R4 first-stage kits and spare parts","description":"\u003cp\u003eTecline R4 first-stage kits and spares: DIR Store lists R4 TEC body parts, not Scubatec F22\/F30 kits.\u003c\/p\u003e\n\u003cp\u003eYou find the main housing, dry chamber and dry-chamber cap, DIN pin, balance plug, IP adjustment screw, valve lifter with seat and DIN 300 bar nut.\u003c\/p\u003e\n\u003cp\u003eYou use them to overhaul or repair the R4, not as a complete first stage.\u003c\/p\u003e\n\u003cp\u003eSprings, star heat exchanger and anti-freeze pin for the same R4 are also in Regulator spare parts and overhaul kits.\u003c\/p\u003e","products":[{"product_id":"strumento-per-tarare-erogatori","title":"Tool for calibrating regulators","description":"\u003cp\u003e\u003cstrong\u003eTank Pressure Gauge for Service | Tecline\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Tank pressure gauge for service is a precision instrument designed for technicians and service centers who need to quickly check the residual pressure inside cylinders or test the sealing of first stages during maintenance.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eConnection:\u003c\/strong\u003e Standard DIN connection for direct and secure attachment to cylinder valves.\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eReading Scale:\u003c\/strong\u003e High-visibility dial indicating pressure in bar (usually up to 300 or 400 bar).\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eRelief Valve:\u003c\/strong\u003e Equipped with an integrated purge button or screw to release residual pressure and facilitate detaching the instrument after use.\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eConstruction:\u003c\/strong\u003e Robust chrome-plated brass body with rubber anti-shock protection to withstand intensive use in the workshop or on the dock.\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eMain Use:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\n\u003cli\u003eAccurate verification of cylinder fill pressure.\u003c\/li\u003e\n\n\u003cli\u003eLeak testing of first stages and HP connections.\u003c\/li\u003e\n\n\u003cli\u003eQuick diagnostic tool for diving centers and maintenance technicians.\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eTechnical Note:\u003c\/strong\u003e Unlike underwater diving pressure gauges, this instrument is optimized for \"dry\" use in the workshop or during refilling, offering a quick reading without the need to connect a complete HP hose.\u003c\/p\u003e","brand":"TECLINE","offers":[{"title":"Default Title","offer_id":56553279586649,"sku":"TEC-STR-1963","price":72.6,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0976\/3304\/2777\/files\/strumento-per-tarare-erogatori-erogatori-tecline.jpg?v=1768926196"},{"product_id":"set-strumenti-per-la-manutenzione-erogatori","title":"Regulator maintenance tool kit","description":"\u003cp\u003e\u003cstrong\u003eRegulator Maintenance Tool Set | Tecline\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Tecline Regulator Servicing Tool Set is a professional kit of specialized tools designed for disassembling, reassembling, and calibrating first and second stages. This set includes the essential tools for precisely and safely working on the internal components of regulators, preventing damage to chromed surfaces or threads.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSet Contents:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePin and Spanner Wrenches:\u003c\/strong\u003e For unscrewing nuts, caps, and cartridges of first stages without scratching the body.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eO-ring Tools:\u003c\/strong\u003e Specific picks and hooks for removing and positioning gaskets without damaging their seats.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjustment Tools:\u003c\/strong\u003e Tools for calibrating intermediate pressure and second-stage sensitivity (valve seat).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecific Inserts:\u003c\/strong\u003e Wrenches and sockets designed to fit standard sizes of major regulators on the market (Tecline, Scubatec, and other compatible models).\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterials:\u003c\/strong\u003e Made from stainless steel or high-strength alloys to ensure durability and professional precision.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrganization:\u003c\/strong\u003e Supplied in a dedicated case (pouch or box) to keep tools organized and protected during transport.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVersatility:\u003c\/strong\u003e Essential for maintenance technicians, diving centers, and experienced divers who service their own equipment.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eSafety Warning:\u003c\/strong\u003e Regulator maintenance is a critical operation that directly affects diver safety. The use of these tools requires specific technical training and knowledge of manufacturer-certified procedures.\u003c\/p\u003e","brand":"TECLINE","offers":[{"title":"Default Title","offer_id":56553685680473,"sku":"TEC-SET-2001","price":199.5,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0976\/3304\/2777\/files\/set-strumenti-per-la-manutenzione-erogatori-erogatori-tecline.jpg?v=1789728789"},{"product_id":"utensili-per-o-rings","title":"O-Ring Tools","description":"\u003cp\u003eTecline's O-Ring Tool Kit consists of precision tools (commonly called \"picks\") specifically designed for removing and installing seals in regulators and other diving equipment. These tools are indispensable for working in tight or deep spaces without damaging metal surfaces.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMaterial:\u003c\/strong\u003e Made of high-quality stainless steel to prevent corrosion and ensure the rigidity needed during use.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTip Design:\u003c\/strong\u003e The set includes various tips (angled, hooked, or curved) designed to engage O-rings from different angles.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHandle:\u003c\/strong\u003e Ergonomic or knurled handle to provide a secure grip and millimeter-level control, essential for not scratching the O-ring seats (which would compromise the watertight seal).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eVersatility:\u003c\/strong\u003e Ideal for the maintenance of first stages, second stages, cylinder valves, and HP\/LP hose connections.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBenefits of use:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003ePrecision:\u003c\/strong\u003e Allows for easy extraction of old or encrusted seals.\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eComponent Safety:\u003c\/strong\u003e Unlike improvised tools (such as screwdrivers), the shape of the tips is optimized to minimize the risk of marking the chrome-plated brass or aluminum of diving components.\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb data-path-to-node=\"9,0\" data-index-in-node=\"0\"\u003eTechnical Note:\u003c\/b\u003e During use, it is recommended to act gently. Even though they are made of steel, excessive pressure on the O-ring seat can create micro-grooves that would cause persistent air leaks.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"TECLINE","offers":[{"title":"Default Title","offer_id":56793984860505,"sku":"TEC-UTE-5603","price":12.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0976\/3304\/2777\/files\/utensili-per-o-rings-bombole-tecline.jpg?v=1768929896"},{"product_id":"din-m26x2-con-tappo","title":"DIN M26X2 with plug","description":"\u003cp\u003e\u003cstrong\u003eTecline DIN M26x2 connector with first stage cap\u003c\/strong\u003e designed for diving configurations with M26x2 attachment, compliant with standards used for oxygen-compatible gas mixtures.\u003c\/p\u003e\n\u003cp\u003eEquipped with a green ABS collar for immediate identification of the M26x2 standard, it comes with a protective cap to preserve the threading and the first stage connection during transport and storage. The green color coding facilitates visual recognition in technical configurations, single or double tank, where distinction between traditional DIN and M26 attachments is required.\u003c\/p\u003e\n\u003cp\u003eComponent dedicated to Tecline first stages designed for M26x2 connection.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTechnical specifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\n\u003cli\u003eAttachment: DIN M26x2\u003cbr\u003e\n\n\u003c\/li\u003e\n\n\u003cli\u003eCollar: Green ABS\u003cbr\u003e\n\n\u003c\/li\u003e\n\n\u003cli\u003eProtective cap included\u003cbr\u003e\n\n\u003c\/li\u003e\n\n\u003cli\u003eCompatible with Tecline first stage designed for M26x2\u003c\/li\u003e\n\n\n\u003c\/ul\u003e","brand":"TECLINE","offers":[{"title":"Default Title","offer_id":57276107522393,"sku":"TEC-DIN-7360","price":14.8,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0976\/3304\/2777\/files\/20260211_203242.png?v=1770880291"},{"product_id":"kit-multifunzione","title":"Multifunction Kit","description":"\u003cp\u003e\u003cstrong\u003eProcean Multifunction Kit\u003c\/strong\u003e designed for basic maintenance of diving equipment, ideal for servicing regulators, valves, and accessories in technical or recreational configurations.\u003c\/p\u003e\n\u003cp\u003eCompact multi-tool with a width of 6 cm, equipped with an aluminum carabiner for attachment to a BCD, backplate, harness, or gear bag. This tool is designed for quick adjustments and component replacements directly on the boat or during dive preparation.\u003c\/p\u003e\n\u003cp\u003eIt integrates tools dedicated to O-ring management, inflation valves, and second stage orifice adjustments.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIncludes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\n\u003cli\u003e1 flat-head screwdriver for orifice adjustment\u003cbr\u003e\n\n\u003c\/li\u003e\n\n\u003cli\u003e1 O-ring tool\u003cbr\u003e\n\n\u003c\/li\u003e\n\n\u003cli\u003e1 inflation valve tool\u003cbr\u003e\n\n\u003c\/li\u003e\n\n\u003cli\u003e1 Phillips screwdriver\u003cbr\u003e\n\n\u003c\/li\u003e\n\n\u003cli\u003e3 hex wrenches\u003cbr\u003e\n\n\u003c\/li\u003e\n\n\u003cli\u003e1 valve nut screwdriver\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003cp\u003eCompact and easily transportable thanks to the integrated aluminum carabiner.\u003c\/p\u003e","brand":"Procean","offers":[{"title":"Default Title","offer_id":57343206490457,"sku":"PRO-KIT-7369","price":23.75,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0976\/3304\/2777\/files\/Multitool_black_02.jpg?v=1771606834"},{"product_id":"tappino-per-primo-stadio-tecline-r4-tec-r4ww-v1-ice","title":"Tecline R4 TEC\/R4WW\/V1 ICE First Stage Cap","description":"\u003cp\u003e\u003cstrong\u003eTecline First Stage Plugs (R4 TEC, R4WW, V1 ICE)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eOriginal Tecline components designed for closing unused ports on R4 TEC, R4WW, and V1 ICE first stage regulators. These plugs ensure a perfect seal for the regulator body, maintaining hydrodynamic performance and system safety.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Specifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Specifically for Tecline R4 series (including White Water version) and V1 ICE first stages.\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Made of chrome-plated brass, selected for resistance to oxidation and mechanical stress in marine environments.\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eSealing System:\u003c\/strong\u003e Complete with integrated O-ring to ensure an immediate and reliable watertight seal.\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eAvailable Versions:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eLP Plug (Low Pressure - 3\/8\"):\u003c\/strong\u003e For low-pressure ports (regulators and inflation systems).\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eHP Plug (High Pressure - 7\/16\"):\u003c\/strong\u003e For high-pressure ports (pressure gauges and transmitters).\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation:\u003c\/strong\u003e It is recommended to hand-tighten the plug and then use an open-end wrench for the final tightening without applying excessive force, to preserve the integrity of the O-ring and the threading.\u003c\/p\u003e","brand":"TECLINE","offers":[{"title":"For Low Pressure (LP) outlet","offer_id":58818454192473,"sku":"TEC-TAP-7598","price":4.1,"currency_code":"EUR","in_stock":true},{"title":"For high pressure (HP) outlet","offer_id":58818454225241,"sku":"TEC-TAP-7599","price":4.1,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0976\/3304\/2777\/files\/SDCV.jpg?v=1775027085"},{"product_id":"perno-valvola-poppet-assembly-con-sede-primo-stadio-r4-tec-tecline","title":"Valve Spool (Lifter) with Seat for R4 TEC First Stage","description":"\u003cp\u003eThis component is the \"heart\" of the high-pressure sealing mechanism of the R4 TEC Tecline first stage. It is a precision mechanical assembly, visible in the image, that plays a critical role in regulating gas flow.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eComponent Detail:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eThe Stem:\u003c\/strong\u003e The long, thin rod shown in the image is the stem. It is made of high-precision marine-grade stainless steel and carefully chamfered to ensure smooth movement within the first stage body. The stem is pushed by the piston (or diaphragm) mechanism in response to changes in ambient and cylinder pressure.\u003c\/li\u003e\n\n\n\u003c\/ul\u003e","brand":"TECLINE","offers":[{"title":"Default Title","offer_id":58300664643929,"sku":"TEC-PER-7745","price":10.5,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0976\/3304\/2777\/files\/1000151953_1.jpg?v=1782204362"},{"product_id":"tappo-del-corpo-principale-ghiera-di-chiusura-della-camera-idrostatica","title":"Dry chamber \/ Hydrostatic Chamber Closing Ring","description":"\u003cp\u003eThis robust metallic component, visible in the image, forms the sealing and structural tightening element of the first stage. Its primary function is to seal and precisely lock the sensitive internal components of the hydrostatic chamber into position.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eComponent Details:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003ePrecision External and Internal Threading: \u003c\/strong\u003eIt features high-strength external threading designed to screw directly into the main body of the first stage, compressing the transmission diaphragm and its friction washer. Inside the central cavity, a second fine thread is visible, intended to accommodate the intermediate pressure (IP) adjustment screw and the main spring.\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eHydrostatic Compensation Hole (Flow Hole): \u003c\/strong\u003eA through radial hole is clearly visible on the upper part of the collar. This hole allows surrounding water to enter the regulator's wet chamber to faithfully transmit ambient pressure to the internal diaphragm, ensuring automatic intermediate pressure balancing during descent.\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003ePremium Material: \u003c\/strong\u003eMade from marine brass machined on a CNC lathe and subjected to heavy, mirror-polished chrome plating. This treatment ensures excellent saltwater corrosion resistance and prevents thread galling.\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eNotes for Service and Maintenance:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis component requires the use of specific pin wrenches or official Tecline tools inserted into the compensation hole to be unscrewed and tightened to the correct torque sequence. During periodic overhaul, the threads and the internal seat must be thoroughly cleaned of any scale or oxide deposits before reassembly.\u003c\/p\u003e","brand":"TECLINE","offers":[{"title":"Default Title","offer_id":58300869181785,"sku":"TEC-TAP-7746","price":35.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0976\/3304\/2777\/files\/1000151923.jpg?v=1781543142"},{"product_id":"vite-di-regolazione-della-pressione-intermedia-ip","title":"IP Pressure Adjusting Screws","description":"\u003cp\u003eThis component, visible in the image, is a flat-profile threaded screw with an Allen head, designed to be inserted inside the main body cap (the diaphragm chamber ring previously seen). Its function is to micrometrically adjust the preload of the main spring of the first stage.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eComponent Details:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eHex Drive:\u003c\/strong\u003e At the center of the component, a precisely recessed hexagonal housing stands out. It allows the technician to insert an Allen wrench (hex key) to screw or unscrew the piece, modifying the internal spring tension even when the regulator is pressurized and connected to the test bench or control pressure gauge.\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eExternal Perimeter Thread:\u003c\/strong\u003e The fine thread that wraps around the entire outer diameter is designed to ensure micrometric sliding. This allows for micro-adjustments of the intermediate pressure (IP), typically calibrated between 9.2 and 9.8 bar in Tecline first stages.\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eHighly Resistant Material:\u003c\/strong\u003e Machined from high-strength marine brass with chrome plating or an anti-friction\/anti-oxidation dark finish. It must withstand the constant and significant thrust of the first stage's main spring without yielding or deforming.\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eNotes for Service and Calibration:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eIncreased Pressure (IP):\u003c\/strong\u003e By screwing this component clockwise, the internal spring is compressed, leading to an increase in the intermediate pressure delivered to the second stages.\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eDecreased Pressure (IP): \u003c\/strong\u003eBy unscrewing counter-clockwise, the spring expands, lowering the intermediate pressure value.\u003cbr\u003e\n\n\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e⚠️ ATTENTION: \u003c\/strong\u003eThe adjustment of this component directly affects the stability of the regulator and the breathing effort. It must be performed exclusively by qualified personnel using a control pressure gauge for low-pressure outlets (LP gauge).\u003c\/p\u003e","brand":"TECLINE","offers":[{"title":"Default Title","offer_id":58301014507865,"sku":"TEC-VIT-7747","price":12.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0976\/3304\/2777\/files\/1000151956.jpg?v=1781543404"},{"product_id":"corpo-primo-stadio-r4-tec","title":"R4 TEC First Stage Body - Main Housing","description":"\u003cp\u003eThis original component is the low-pressure distribution body of the Tecline R4 TEC balanced diaphragm first stage. Designed with a fixed body (no rotating parts), it ensures maximum structural solidity and total reliability against wear and tear in technical and advanced recreational diving.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMechanical Details and Certifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eOfficial \"TECLINE - MP 9BAR\" Marking: \u003c\/strong\u003eLaser-engraved on the component head, certifying the authenticity of the spare part and indicating the ideal intermediate working pressure set at 9 bar.\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eOutput Configuration (4 LP + 2 HP): \u003c\/strong\u003eThe component integrates 4 low-pressure (3\/8\") LP ports geometrically arranged to offer extremely clean and linear hose routing towards the second stage, octopus, BCD, and drysuit. The structural design of the first stage is completed with 2 symmetrical high-pressure (7\/16\") HP ports, positioned to accommodate the submersible pressure gauge and any computer transmitter in a perfectly ergonomic way on both sides.\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eCold Water Certification:\u003c\/strong\u003e Bears CE 2984 markings and compliance with EN250A (\u0026gt;4°C) standard, which attests to its homologation and high resistance to freezing (free flow) in icy waters.\u003cbr\u003e\n\n\u003c\/li\u003e\n\n\n\u003c\/ul\u003e","brand":"TECLINE","offers":[{"title":"Default Title","offer_id":58301105013081,"sku":"TEC-COR-7748","price":90.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0976\/3304\/2777\/files\/1000151949.jpg?v=1781544277"},{"product_id":"perno-di-trasmissione-in-plastica-delrin","title":"Anti-freeze Bolt","description":"\u003cp\u003eThis original pin is a fundamental component of the Cold Kit integrated into the Tecline R4 TEC fixed body first stage (4 LP ports and 2 HP ports configuration). Made of high-density transparent technopolymer, it acts as an external mechanical connection for the dry chamber system.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMechanical Details and Anti-Freeze Function:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eIsolated Hydrostatic Transmission:\u003c\/strong\u003e The pin is positioned in the main spring chamber. Its flat head receives water pressure through the external silicone diaphragm and faithfully transmits it to the internal diaphragm of the first stage.\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eTotal Ice Protection: \u003c\/strong\u003eIt allows the first stage to function in a balanced way while keeping the main spring and internal components completely isolated from the surrounding water. This design eliminates the risk of ice blocking the spring, ensuring compliance and safety with EN250A certification for cold water (\u0026gt;4°C).\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eAnti-Friction Material:\u003c\/strong\u003e The plastic polymer ensures smooth sliding, is not affected by limescale, and perfectly resists compression cycles.\u003c\/li\u003e\n\n\n\u003c\/ul\u003e","brand":"TECLINE","offers":[{"title":"Default Title","offer_id":58301116678489,"sku":"TEC-PER-7749","price":3.5,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0976\/3304\/2777\/files\/1000151957.jpg?v=1781544529"},{"product_id":"ghiera-din-300-bar-con-attacco-filettato","title":"DIN 300 Bar Ring with Threaded Connection","description":"\u003cp\u003eThis original structural component allows for the secure connection of the Tecline R4 TEC fixed-body first stage to cylinders with DIN valves. 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Its finned, star-shaped geometric structure is designed to maximize the heat exchange surface within the intermediate pressure chamber, counteracting the freezing effect caused by rapid gas expansion.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features and Benefits:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eActive Prevention of Free-flow:\u003c\/strong\u003e Dissipates the cold generated by high-pressure gas flow, drastically reducing the risk of first stage free-flow due to freezing during winter or deep dives.\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eDynamic 9-Vane Geometry:\u003c\/strong\u003e The finned design allows gas flow to sweep across the metal walls of the radiator, stabilizing the internal air temperature directed to the low-pressure (LP) hoses.\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eConductive \/ Composite Technopolymer Material:\u003c\/strong\u003e Made from special materials with high mechanical strength and excellent thermal stability properties, resistant to wear and compatible with regulator lubricants.\u003cbr\u003e\n\n\u003c\/li\u003e\n\n\n\u003c\/ul\u003e","brand":"TECLINE","offers":[{"title":"Default Title","offer_id":58311804125529,"sku":"TEC-RAD-7753","price":5.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0976\/3304\/2777\/files\/1000151951.jpg?v=1781615598"},{"product_id":"vite-di-regolazione-della-pressione-intermedia-per-primo-stadio-r4-tec","title":"Balance Plug for R4 TEC First Stage","description":"\u003cp\u003eOriginal replacement balance plug for the Tecline R4 TEC scuba first stage. Made of high-strength chrome-plated brass, this threaded component serves as a support and retention base for the main piston spring. It ensures the correct preload of the spring and the perfect stability of the internal balance chamber, preserving the delivery performance and reliability of the first stage according to EN250A standards. 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It is the structural conduit that passes through the DIN handwheel and screws directly into the first stage body, conveying high-pressure air from the cylinder to the core of the regulator valve. 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