HOTDIVE
S2-O2 Oxygen Balanced Piston First Stage
$240.00
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01. Info
The S2-O2 is the oxygen-service version of the S2 EVO balanced piston first stage, assembled throughout with oxygen-compatible materials and lubricants for decompression and stage-bottle duty. The green color coding makes the rich-gas regulator unmistakable at a glance, and the balanced piston delivers the same constant, effortless airflow the S2 platform is known for. Intended for use with pure oxygen and high-oxygen mixes by appropriately trained technical divers.
02. Features
- Oxygen-compatible materials and lubricants used throughout
- Balanced piston design for constant, effortless airflow
- Marine-grade 316 stainless steel body with stainless steel springs
- Green color coding for instant gas identification
- 2 HP + 5 LP ports; DIN connection
- The first stage of the ST2-O2 oxygen set and DECO ST2 deco/stage sets
03. Specifications
- HP ports: 2 × 7/16" 20 UNF; LP ports: 5 × 3/8" 24 UNF
- Intermediate pressure: 130–145 psi (9–10 bar)
- Weight: 522 g / 1.15 lb (DIN)