IST’s newest released high-performance second stage regulator combined with power inflator. IF-O is set in front of you, unlike a traditional octopus, and can be reached at any time when emergency Coupled with our high-spec, large bore intermediate pressure hose. Max. service pressure @ 34.5bar (500psi) Ultra soft front cover allows you to reach the purge button easily Cracking pressure setting @ 1.4-1.6 inch of water Max. service intermediate pressure @ 10bar (145psi)