DIR Regulator Set – R4 First Stage + TEC2 Second Stage + Pressure Gauge

Complete twinset configuration compliant with DIR standards, featuring two monolithic diaphragm first stages with pre-oriented outlets, ultra-compact top-of-the-range second stages, a technical metal pressure gauge, and accessory kit.

The Tecline R4 TEC2 + SPG DIR Set Regulator Set, available on DIR-STORE, is the premium all-in-one technical package designed for flawless management of a twinset. This kit combines the absolute robustness and geometric cleanliness of the monolithic R4 first stages with the advanced fluid dynamics of the TEC2 second stages, also integrating the pressure control system (SPG) with a metal pressure gauge. In full compliance with the DIR (Doing It Right) philosophy, the fixed pre-angled routing causes the hoses to run parallel to the cylinders, reducing bulk behind the neck. Certified well beyond the requirements of the strict European standard EN250A, it offers superior performance and reliability in the deepest technical dives, in caves, or in icy waters.

Technical Features:

• Dual R4 TEC First Stage (Monolithic and Anti-Freeze Design): Constructed from high-grade chromed marine bronze, the R4 first stages use a balanced diaphragm mechanism assisted by a sealed dry chamber (Dry Chamber) and an integrated cooling kit. This system completely isolates the springs and internal components from ice, mud, and sediment. The fixed arrangement of the angled radial outlets is optimized to run the hoses along the BCD bladder without generating forced bends or structural tension. Each first stage offers 4 LP and 2 HP ports.
• Dual TEC2 Second Stage (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 fluid dynamics of the gas, drastically reducing the total inspiratory work at any depth, regardless of the residual pressure in the cylinders.
• Anti-Freeze and Mechanical Shielding: Designed to withstand significant temperature fluctuations and chemical-mechanical stresses, the second stages feature internal metal components with a protective non-stick Teflon coating and an integrated heat exchanger at the connection point. The structural polymer protective casing is shielded at the front by a solid stainless steel ring.
• Technical 52mm Metal SPG Pressure Gauge: The set includes a professional diving pressure gauge with a chromed brass casing and 52mm diameter tempered glass. Equipped with a luminous background for high readability, it is paired with a black high-pressure (HP) hose of customizable length (0.57 m, 0.60 m, or 0.65 m).
• Dual Adjustment and Safety: Both second stages integrate a lever for Venturi control (essential for inhibiting accidental free flows on the backup second stage positioned at the neck) and a micrometric knob for manually calibrating the inspiratory effort. They are completed by ergonomic high-comfort hypoallergenic silicone mouthpieces.
• Custom DIR Style Hose Geometry: The included LP hoses faithfully follow the technical standard: a long hose of 1.93 m, 2.00 m, or 2.10 m for the primary second stage (the donor) and a short hose of 0.61 m for the backup at the neck.

Set Contents:

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

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

1x 52mm Metal Pressure Gauge (SPG)

1x HP Hose for pressure gauge (choice of length between 0.57 m / 0.60 m / 0.65 m)

1x LP Hose for primary regulator (choice of length between 1.93 m / 2.00 m / 2.10 m)

1x Short 0.61 m LP Hose for backup regulator

2x 88mm Stainless Steel Snap Hooks (one for attaching the long hose to the right D-ring, one for the pressure gauge to the left D-ring of the waist strap)

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

1x Original Tecline Compact Case / Bag for kit protection and transport