DO YOU KNOW THIS: The 1/2 inch pex a washing machine outlet box is ONLY compatible with expanding fitting system, NOT compatible with crimp pex fitting system. Its inlets work well with 1/2 inch Pex-a pipes; the outlets fit well with 3/4 inch washing machine hoses. The pex a washer box features both central and side drains, which is easy to drain off water. PACKAGE INCLUDES: Pex-a Washing Machine Outlet Box*1; Pre-installed support bracket*2; Expansion Ring*4. VERSATILE APPLICATIONS:The pex a washer box features a recessed design, which is used for all kinds of washing machines and saves space. The box and the frame can be detached from each other, enabling a flexible layout and permitting inverted installation. LONG LASTING: The shut off valves of Pex expansion laundry outlet box are forged from solid C46500 brass that delivers high corrosion and abrasion resistance performance. It is excellent for pipe fitting system as it can withstand long period of wear a