The Zurn 114-NR3XLDU 1-1/4" double union FNPT water pressure reducing valve with integral by-pass check valve and strainer reduces high inlet pressure to a lower outlet pressure. The integral by-pass design prevents excessive pressure build-up and the balanced piston design allows the regulator to react smoothly to changes in the system's flow demand. The strainer makes it perfect for residential and commercial water systems that require frequent cleaning because of sediment or debris. Plus, its compact design and short lay length allow it to be installed in tight spaces. It has a 1-1/4" double union FNPT inlet and outlet and is rated for use in up to 400 PSI of pressure and temperatures up to 140 degrees Fahrenheit.