Hollis - LG Pony Bottle Gauge BAR or PSI:PSI endorsed by or in any

endorsed by or in any way associated with GoPro Inc

GM 2050-5 small fits tanks from size 5

the over-balancing feature allows the medium pressure gas in the hose to increase at a rate faster than ambient

Single tempered glass lens

Complete with smaller & larger loop mounts

Hollis - LG Pony Bottle Gauge BAR or PSI:PSI endorsed by or in anyIdeal for deco bottles or back up air supplies, this miniature pressure gauge provides accurate reading up to 5000 PSI or 400 BAR. The Hollis Pony Bottle Gauge is a tiny gauge that easily connects to the 7 16" high pressure port of your pony bottle regulator or other alternate tank regulator to show pressure in an easy to read display. Any diver who has used a pony bottle knows the hassle involved with trying to find out how much air is in the tank.