This is the Poseidon Cirrus Pressure Gauge with Hose PSI Scuba Diving Gauge Features: Poseidon Pressure Gauge Only Traditional Looking Circular Pressure Gauge Available with Yellow or Black Gauge Face 300 bar (4350 psi) Pressure Readout Small Model Won&';t Get In-the-Way During Dive Robust Chrome Plated Brass for Strength and Durability Reserve Air Indication form 0 to 50 bars (0 to 500 psi) Cirrus Pressure Gauge with Hose This 300 bar (4350 psi) pressure gauge is a small model that will not be in the way during the dive. Made of robust metal and packed with Poseidon&';s 300 bar kevlar reinforced hose.