The 535H Series, ½ inch to 1 ¼ inch pre-adjustable pressure reducing valves are ideal for residential and commercial applications, with a dial indicator for direct psi setting and optional pressure gauge for local downstream pressure indication. The series features a noise reducing, low-friction, pressure-balanced and replaceable cartridge for control stability. High temperature rating of 180 F and high pressure rating of 300 psi make it ideal for hot water booster systems. The self-contained cartridge is removable for easy inspection, cleaning and maintenance including replacement if needed. Connection types include sweat, press, PEX barb and NPT. The product is certified to ANSI/NSF 372, low lead laws and meets U.S. and Canadian plumbing codes.