Hollis Over Pressure Relief Valve (1st stage) GPS Manufactured from high quality polymer

Manufactured from high quality polymer and designed specially to ensure cylinders are simply moved in a safe manner particularly when taken for filling

x1 - 1/2"UNF LP plug

Pockets incorporate a zip on the flap for storing small items such as bolt snaps and spares

Never again let your pre-dive hydration be a concern during your dry suit dive

Hollis Over Pressure Relief Valve (1st stage) GPS Manufactured from high quality polymerHollis Over Pressure Relief Valve for First Stage: Compact Relief Valve Design Releases Pressure in Event of Over Pressurization of First Stage Factory Set: 175 to 185 psi (12 to 12. 75 bars) for Pressure Release Fits Standard 3 8 24 UNF Low Pressure Regulator Port Chrome Brass Construction Stainless Steel Internal Spring Used by Technical and Serious Divers Protect Regulator Components O2 Ready to 100% Oxygen Great Safety Item