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The CALEFFI 574166A is a low lead brass automatic filling valve with a testable reduced pressure zone backflow preventer. This 1-inch press connection unit includes an AutoFill Combo and a pressure gauge, designed for systems requiring precise pressure control. It operates with a maximum inlet pressure of 154 psi and a maximum working temperature of 140°F, ensuring reliable performance.
Features a pre-adjustable automatic filling valve and a testable RPZ backflow preventer in a low lead brass body.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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