DIR Regulator Set – 1st Stage R4 + 2nd Stage TEC2

Complete twinset configuration compliant with DIR standards, featuring two monolithic membrane first stages with pre-oriented ports and top-of-the-range ultra-compact second stages.

The Tecline R4 TEC2 DIR Style Regulator Set, available at DIR-STORE, represents the ideal combination of the extreme structural solidity of a fixed-body first stage and the cutting-edge fluid dynamics of a premium second stage. Designed specifically to meet the needs of the most modern technical and cave diving training, this kit eliminates rotating swivels in favor of a monolithic pre-angled geometric arrangement of the R4. The twinset hoses run perfectly parallel to the cylinders, reducing bulk behind the neck and eliminating the risk of entanglement. Certified well beyond the stringent EN250A European standard, it ensures unparalleled breathing comfort even in icy waters.

Technical Features:

• Dual R4 TEC First Stages (Fixed Geometry and Total Shielding): Constructed from high-quality chrome-plated marine bronze, the R4 first stages utilize a balanced diaphragm mechanism assisted by a dry sealed chamber and an integrated cooling kit. This system completely isolates the springs and internal components from ice, mud, and sediment. The fixed, radially angled port arrangement is meticulously optimized to run the hoses along the BCD without creating structural tension. Each first stage offers 4 LP and 2 HP ports.
• Dual TEC2 Second Stages (DFS Technology and Ultra-Comfort): The pneumatically balanced second stages implement the innovative DFS (Direct Flow System) direct flow system. This architecture optimizes the internal gas fluid dynamics, drastically reducing the total inspiratory effort at any depth, regardless of the residual pressure in the cylinders.
• Anti-Freeze and Mechanical Shielding: Designed to withstand extreme temperature fluctuations and chemical-mechanical stresses, the second stages feature internal metal components with a non-stick Teflon protective coating and an integrated heat exchanger at the connection point. The protective structural polymer casing is shielded at the front by a solid stainless steel ring.
• Dual Adjustment and Safety: Both second stages integrate a Venturi control lever (essential for inhibiting accidental free-flow on the backup second stage positioned at the neck) and a micrometric knob to manually calibrate the inspiratory effort. They are completed with high-comfort, hypoallergenic silicone ergonomic mouthpieces.
• Custom DIR Style Hose Configuration: The set includes high-quality LP hoses meticulously optimized for their respective technical roles: a long hose (1.93 m, 2.00 m, or 2.10 m) for the primary second stage (the donor) and a short 0.61 m hose for the neck backup.

Set Contents:

2x Tecline R4 TEC DIN 300 Bar First Stages (with dry sealed chamber kit)

2x Tecline TEC2 Second Stages (Black Cover with stainless steel ring)

1x LP hose for primary/donor regulator (length selectable between 1.93 m / 2.00 m / 2.10 m)

1x Short 0.61 m LP hose for backup regulator

1x 88 mm Stainless Steel snap hook (for attaching the long hose to the right D-ring of the harness)

1x Elastic Bungee Necklace (for positioning the backup under the chin)

1x Original Tecline compact case / bag for kit protection and transport