- Includes R8 yoke style, balanced diaphragm, antifreeze first stage and O60 second stage
- High-flow, fast-acting valve system capable of delivering large gas volume in an instant
- 4 intermediate pressure ports (located on the swivel turret) and 2 high pressure ports
- Pre-dive / dive switch and breathing resistance adjustment knob on second stage
- Ventilation rate at 206 bar (3000psi): 3820L / 135 cu ft per minute
Offering full CE certification and performance that is on par with the finest regulators on the market, the IST Premium Balanced Diaphragm Yoke Style Antifreeze Regulator Bundle consists of a cold water optimized R-8 first stage and O-60 second stage, with included large bore intermediate pressure hose. This combination is well suited for cold water, deep dives and demanding profiles, but can also be fine-tuned for smooth, responsive gas delivery in more relaxed conditions.
The IST R8 first stage, one of the best ever tested by Scuba Diving Magazine’s ScubaLab, is a balanced diaphragm design engineered to prevent freezing when diving in cold water. Two high pressure ports and four intermediate ports are mounted on a swivel turret for easy hose routing.
The O-60 second stage is equipped with a metal balancing tube and a pair of user adjustments: the dive/pre-dive thumb lever detunes the reg to minimize freeflows on the surface, and the breathing resistance knob lets you regulate airflow as you descend to greater depths. Comes with our high-spec, large bore intermediate pressure hose (max. service pressure @ 34.5 BAR / 500psi) which flows sufficient breathing air even when the demand is heavy. Includes comfort mouthpiece with bite tabs.
The R860 is designed for divers of all skill levels, and for water conditions ranging from the tropics to the arctic.
First stage intermediate pressure setting @ 9.5~10.0 bar (137~145psi)
First stage ventilation rate @ 206 bar (3000psi): 3820L / min. (135 cu ft / min.)
Second stage cracking pressure setting @ 0.8 ~ 1.2 inch of water
Second stage flow rate @ 206 bar (3000psi): 30+ cu ft / min
Second stage max service intermediate pressure @ 10 bar (145psi)