Hogarthian Octopus Set – 1st Stage R4 + 2nd Stage TEC1 + Pressure Gauge

Pure DIR / Hogarthian technical configuration for single tank. Includes R4 TEC first stage with dry chamber, two balanced TEC1 second stages (primary and backup with neck collar), 1.93 m long hose, compact pressure gauge with short hose, stainless steel carabiners, and a carry bag. Choose your hoses directly from the drop-down menu.

The Tecline R4 TEC1 + SPG Hogarthian Octopus Set, available at DIR-STORE, is the definitive "ready-to-dive" configuration designed according to the rigorous standards of the DIR (Doing It Right) philosophy and the Hogarthian system for advanced recreational and technical single-tank diving. This package eliminates traditional configurations in favor of a 1.93 m long hose system for primary donation in case of emergency, paired with a backup second stage positioned at the neck via an elastic collar. Based on the robust R4 TEC balanced diaphragm first stage, the set offers elite breathing performance and exceptional thermal insulation even in icy waters.

Technical Features:

• R4 TEC First Stage (Balanced Diaphragm and Dry Chamber): Made of solid marine bronze with a robust chrome finish, the R4 TEC utilizes a balanced diaphragm mechanism. The presence of the sealed dry chamber completely isolates the internal components from the surrounding water, offering total protection against freezing (free-flow) and sediment ingress. It features a linear port layout designed for clean and hydrodynamic hose routing (DIN 300 bar connection).
• Dual TEC1 Second Stage (Smooth and Balanced Breathing): Both TEC1 second stages are pneumatically balanced to minimize initial breathing effort (WOB). They provide an incredibly soft and constant airflow even at great depths or under extreme exertion.
• Flow Control and Adjustments: The second stages feature a side lever for Venturi effect management (essential to prevent accidental free-flow of the backup second stage at the neck when not in use) and an external micrometric knob for manual adjustment of the initial breathing effort.
• Hogarthian Layout and Proflex Hoses: The configuration adopts the pure DIR philosophy. The primary regulator is mounted on the 1.93 m Proflex long hose (which passes under the right arm and behind the neck to be instantly donated to the buddy), while the backup regulator is mounted on the 0.61 m Proflex short hose and held at the neck by a silicone collar (neck-band). Proflex hoses offer exceptional flexibility and significantly lighter weight than traditional rubber hoses.
• Technical SPG 52 mm Pressure Gauge: The kit includes a professional analog underwater pressure gauge with a 52 mm diameter chrome-plated brass case and a highly legible dial. It comes with a 0.60 m short high-pressure (HP) hose in black, ideal for attaching to the left D-ring of the harness using the included carabiner, reducing bulk and hydrodynamic drag.
• Included Technical Accessories: The set comes complete with 2 x 88 mm swivelling snap hooks made of marine-grade stainless steel for securing the pressure gauge and the primary second stage (when temporarily clipped).

Custom Configuration: At DIR-STORE, you can configure the set according to your precise diving preferences. Select the type (Rubber or Proflex/Miflex) and exact measurements of all hoses directly from the drop-down menu before adding the product to your cart!

Standard Set Contents (Configurable):

• 1x Tecline R4 TEC DIN 300 Bar First Stage (Balanced diaphragm with dry chamber)
• 2x Tecline TEC1 Second Stages (Black, for primary and backup configuration)
• 1x 52 mm Metal SPG Pressure Gauge
• 1x 1.93 m LP Hose in Black (selectable in rubber or Proflex)*
• 1x 0.61 m LP Hose in Black (selectable in rubber or Proflex)*
• 1x 0.60 m HP Hose in Black (selectable in rubber or polyurethane)*
• 2x 88 mm Stainless Steel Snap Hooks
• 1x Elastic Neck Collar for backup second stage
• 1x Tecline Oval Regulator Carry Bag / Case