Pre-adjustable pressure reducing valve for residential and commercial applications. DZR low lead "Ecobrass" body. Unique noise reducing pressure balanced cartridge. Low friction anti-scale moving parts. High flow seat design. Dial indicator with direct readout. Replaceable cartridge. Integral stainless steel filter. Adjustment locking screw. Max. working pressure: 300 psi. Max. working temperature: 180ﾰF. Pressure setting range: 15 ﾗ 90 psi. Factory setting: 45 psi. Certified to: ASSE 1003, CSA B356, NSF61, NSF 372, Low Lead Laws and listed by ICC-ES. Meets codes IPC, IRC & UPC for use in accordance with the U.S. and Canadian plumbing codes.