Was on the boat today and saw my old Apeks Sentinal 2nd stage mod that I use as an inflator for air mattresses, small dingy.....or anything that needs basic inflating. Just purge and blow. Also good for anything where dry compressed air may be needed. Just a cut cheap funnel and attach to the exhaust port with some tape. Works great! I also have a 5 -6ft length of galvanized pipe and we use this "funnel mod" to shoot 32 nitrox through the pipe onto a wet driftwood beach fire to get the wet wood going..... Works great!!!
