The 535H Series of 1/2- to 1 1/4-inch pre-adjustable pressure-reducing valves from Caleffi North America are ideal for residential and commercial applications, with a dial indicator for direct psi setting and optional pressure gauge for local downstream pressure indication. A high temperature rating of 180 degrees F and high pressure rating of 300 psi are ideal for hot-water booster systems. Connection types include sweat, press, PEX barb and NPT. 414/238-2360;

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