SharkBite 1/2 Inch x 3/4 Inch MHT Washing Machine Outlet Box, Push to Connect Brass Plumbing Fittings, PEX Pipe, Copper, CPVC, 24763 - - Amazon.com
Washing Machine Outlet Boxes
How to Install SharkBite Washing Machine Outlet Box - YouTube
Tectite Part # FSBBOXWM - Tectite 1/2 In. Brass Push-To-Connect X 3/4 In. Male Hose Thread Washing Machine Outlet Box - Installation Valves - Home Depot Pro