Hollis Large Pony Bottle Gauge professional It takes a little getting

It takes a little getting used to –after all

To enroll in the PADI Discover Scuba Diving course

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Hollis Large Pony Bottle Gauge professional It takes a little gettingThe Hollis Pony Bottle Gauge is a tiny gauge that easily connects to the 7 16" (1. 1 cm) 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. Switching regulators to view the primary pressure gauge or adding a separate pressure gaugeto the pony bottle is a