Ths lead-free water pressure reducing valves is used in commercial and residential applications to reduce incoming water pressure for protection of plumbing system components and to reduce water consumption. It features a union inlet connection, integral stainless steel strainer and high temperature resistant reinforced diaphragm for hot water. It has an adjustable pressure range and is serviceable in-line.
Solid lead-free brass construction
Versatile enough to use in commercial or residential applications
Integral stainless steel strainer is removable for cleaning
Maximum working pressure: 300 psi (21 bar), adjustable reduced pressure range: 25 to 75 psi (172 to 517 kPa), standard pressure setting: 50 psi (344 kPa)

https://www.homedepot.com/p/Watts-3-4-in-Brass-FPT-x-FPT-Water-Pressure-Reducing-Valve-3-4-LF25AUB-Z3/202922385#overlay