Makes determining your water capacity for a sprinkler system a breeze. Simply attach this gauge, and it will tell you the two key factors to designing your system, water pressure and gallons per minute. No more guesswork!

Features:

• Use on outside faucet, not in line
• Use adjustment knob to balance PSI with GPM
• Measures water pressure up to 160 PSI and water flow up to 13 GPM
• Inlet 1/2" Female