Octopus Set – 1st Stage F40 + 2nd Stage FX3 + Pressure Gauge

Complete ultracompact balanced diaphragm configuration, with anti-tangle asymmetric outputs and Nitrox/O2 compatibility. Ideal both as an advanced recreational system and as a base for future twinset configurations. Includes F40 first stage, main second stage and FX3 octopus, compact 52mm pressure gauge, and customizable hoses.

The Scubatec F40 FX3 + SPG Regulator Set, available at DIR-STORE, is a high-performance breathing system that stands as a true best-seller for divers who demand compactness, cold water reliability, and geometrically perfect hose routing. At the heart of the kit is the F40 first stage, an entirely Made in Italy balanced diaphragm reducer distinguished by its special asymmetric port layout. Designed to allow hoses to descend naturally and parallel to the cylinder profile, this set eliminates forced bends and tensions on the mouthpiece. Coupled with the adjustable FX3 second stages, it ensures extraordinarily smooth and light breathing at any depth.

Technical Features:

• F40 First Stage (Balanced Diaphragm, Ultracompact and Asymmetric): Made in Italy with the highest quality metals, the F40 combines extremely small dimensions with elite performance. It ensures a constant intermediate pressure (calibrated between 9.5 and 10 Bar) regardless of depth or gas reserve. It features 4 LP ports and 2 HP ports arranged asymmetrically to allow for linear and hydrodynamic routing, eliminating hose crossovers behind the neck. It comes standard with a robust ABS clamping ring (DIN 300 bar connection).
• Designed for Extreme Environments and Cold Water: The internal structure is insulated and specifically designed to operate safely in cold or contaminated water. It integrates a metal radiator on the head to maximize thermal exchange and prevent auto-freezing, and is already set up for the optional installation of the sealed Anti-Freeze Kit.
• Natively Configured for Nitrox / O2: This version is assembled directly at the factory with Viton O-rings and lubricated exclusively with high-quality oxygen-compatible grease, ensuring full safety for use with enriched breathing mixtures (EAN/Nitrox).
• Dual FX3 Second Stage (Micrometric Adjustment and Robustness): The FX3 second stages are designed to offer maximum reliability over time. On the side, they integrate a knob for manual adjustment of the initial breathing effort and a lever for Venturi flow control, allowing the diver to calibrate the regulator's sensitivity to the millimeter based on depth and preventing accidental continuous flows (free-flow) when the octopus is not in use.
• Octopus and Visual Layout: To ensure immediate visual identification and maximum buddy safety, the primary second stage comes in the classic black color, while the emergency second stage (Yellow FX3) features a high-visibility yellow front cover.
• Technical SPG 52 mm Pressure Gauge: The kit includes a professional and compact analog pressure gauge, equipped with a 52 mm diameter metal case and a highly legible dial for quick monitoring of the reserve. It comes with an 0.80 m heavy black rubber high-pressure (HP) hose.
• Hose Flexibility: The set comes standard with a 0.70 m LP hose for the primary second stage (black color) and a 0.90 m LP hose for the octopus (black color).

Note for purchase: At DIR-STORE, you can customize your configuration by choosing the length and type of hoses (e.g., rubber or Miflex) best suited to your diving style before completing your order!

Standard Set Contents:

• 1x Scubatec F40 DIN 300 Bar First Stage (Asymmetric balanced diaphragm with radiator and ABS ring)
• 1x Scubatec FX3 Second Stage (Black color, primary version)
• 1x Scubatec FX3 Second Stage (Yellow color, octopus version)
• 1x Metal SPG 52 mm Pressure Gauge
• 1x 0.70 m LP Hose in black (for primary regulator)*
• 1x 0.90 m LP Hose in black (for octopus)*
• 1x 0.80 m HP Hose in black rubber (for pressure gauge)

SCUBATEC Diving Regulator KITS are RINA certified and comply with the international standard UNI EN250:2014 which regulates the production and sale of Personal Protective Equipment (PPE) of category III. The 0474 mark guarantees the manufacturer's compliance with the provisions of current community regulations.