Plumber used PEX for relief valve. Is this connection acceptable? : r/Plumbing
Wilkins 3/4 in. NR3XL Pressure Reducing Valve with Double Union PEX Crimp Tailpiece Connection Lead Free 34-NR3XLDUPEX - The Home Depot
3/4 In Lead Free Water Pressure Reducing Valve, Pex Inlet And Outlet Connections
Cash Acme 2-in EB45 Double Union PEX-A Expansion Pressure Regulating Valve in the Pressure Relief Valves & Regulators department at Lowes.com
1" PEX Tankless Water Heater Isolation Valve kit with Pressure Relief Valve LEAD FREE
Butler Supply | Watts Water Technologies|0009587|098268333657
Expansion PEX A 3/4 inch Tankless Water Heater Isolation Service Valve Kit w/Pressure Relief Valve, for Rheem, Rinai, Eccotemp - On Sale - Bed Bath & Beyond - 31489233
LF25AUB-DU-PEXXPEX 3/4 - Watts
Shop 1" Pressure Reducing Valve PRV PEX Crimp Union at Commercial Industrial Supply