OMS Dive Gear SPG 2 in (52 mm), mineral glass, "OMS" 0-5500 PSI Color BlackThe OMS Stage Gauge is a lightweight, compact submersible pressure gauge (SPG) designed for stage and deco bottles or streamlined travel regulator setups. Engineered for divers who prioritize minimalism without sacrificing performance, this gauge features a high contrast face for clear visibility in low light conditions and a durable brass housing for reliability. Available in both Bar and PSI measurements, it comes in two sizes (2" 50. 8mm or 2. 5"