xFROG - ST4 HD Color BackMount

Dive into unparalleled performance with the xFROG ST4 HD Color BackMount regulator set.

This meticulously crafted set, featuring the balanced diaphragm first stage S4 and the exceptional T4 second stage, provides reliability and precision for advanced divers. With its multi-color design and robust build, the ST4 HD Color BackMount is perfect for those who value performance and modern underwater solutions. Rotating LP ports and a dry environmental system make it a versatile tool for various conditions.

Set includes:

• 2x First Stage S4 HD Color – Precisely crafted, balanced diaphragm regulator for maximum efficiency.
• 2x Second Stage T4 HD Color – Pneumatically balanced, adjustable with Venturi technology for smooth breathing.
• 1x 52mm Pressure Gauge – Luminous face with easy-to-read scale up to 400 BAR.
• LP Hoses: Proflex 210 cm and 0.65 m, and HP 0.60 m.
• 2x 88mm Stainless Steel Bolt Snap
• Regulator Box – Durable case for safe storage and transport.

Key Benefits of the ST4 HD Color BackMount

First Stage S4 HD Color

The S4 HD Color first stage offers stable pressure at various depths thanks to its balanced diaphragm, ensuring uninterrupted performance. The DIN connection system and rotating LP ports provide outstanding flexibility.

• Intermediate Pressure: 9–9.5 bar (130–140 psi)
• Ports: 2 high-pressure (7/16" 20W UNF) and 5 low-pressure (3/8" 24W UNF)
• Weight: 780 g (DIN)
• Material: 316 stainless steel body and SUS springs
• Environmental Dry System: Prevents freezing and contamination.

Second Stage T4 HD Color

The T4 HD Color balanced second stage adapts to individual diver needs, providing smooth, controlled breathing. Equipped with a heat exchanger and Venturi flow control, the T4 performs exceptionally well in cold waters.

• Type: Pneumatically balanced, adjustable
• Venturi Switch: dive/pre-dive
• Breathing Effort: 1.2-1.5 CIW
• Weight: 246 g (OCTO: 189 g)
• Mouthpiece: Food-grade TPU with reusable clamp

The xFROG ST4 HD Color BackMount is an advanced regulator for divers seeking top-quality equipment. With its outstanding construction and functionality, every dive becomes safer and more comfortable.