What size valve do I need?

The FloLogic System comes in three sizes: a 1” valve (for 1″ and smaller pipes), allowing a flow capacity up to 50 gallons-per-minute (GPM), a 1 ½” valve, allowing a flow exceeding 100 GPM and a 2″ valve, with a flow capacity in the 200 GPM range. To determine your pipe size, you can measure the incoming water line’s direct diameter at the end of the pipe. You can also get pipe size by measuring circumference using a flexible tape and dividing the outside circumference by 3.14. For common ¾” water service pipes, simply use the 1” valve. Measurement Guide