Dive Rite 1-Inch Button SPG BAR/PSI

Displaying pressures up to 5000 PSI in 1000 PSI increments and 350 bar on the same face, our 1-inch Button SPG is ideal for use with pony, Argon, and bailout bottles when all you need is an indication of full or empty. Fits standard, 7/16 in high pressure port of any first stage regulator, no hose required. Chrome-plated brass with a polycarbonate face resists corrosion and scratches. Note: Remember to pressurize the regulator prior to submerging in water. Otherwise, water can enter the regulator, cause corrosion in the regulator and 1-inch Button SPG, which diminishes the life of the SPG. While pressurizing, it is important to look away from the gauge for protection in the unlikely event of a failure.