The 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… - Read More

US$ 41.95

The Hollis Brass Pressure Gauge is a solid and compact brass SPG. This rugged, easy-to-read gauge works great as a primary or even backup pressure gauge for the beginner to the most advanced technical diver. Gauge has a luminescent face for easy reading… - Read More

US$ 99.95

The new Low-Profile Brass SPG with scratch-resistant lens, high-contrast background, luminescent needle, low weight and small size allow for a more streamlined rigging and are ideal for stage and deco bottles. - Read More

US$ 72.95