About This Faucet Outlet Box equipped with a 1/2 inch expansion PEX-A inlet and 3/8 inch compression outlet connections Only Compatible with expanding fitting system, NOT Compatible with stainless steel clamp & copper crimp Ring systems 2 Pcs Pre-installed 1/4 turn Lead Free chromed angle stop valve for hot and cold water supply Complies with NSF 61-G requirements(Portable Water Standard} The Snap-on faceplate dimensions are 6 inch x 6 inch, The depth of outlet is 3.5 inch The rough opening is 4.5 inch x 4.5 inch x 3.3 inch; The box with one-piece box-and-flange no additional support framing required. Overview Material : Brass Brand : EFIELD Item dimensions L x W x H : 7.5 x 6.5 x 4 inches Exterior Finish : Chrome,Copper,Stainless Steel Inlet Connection Size : 0.5 Inches Inlet Connection Type : Expansion Outlet Connection Type : Compression Number of Ports : 2 Outlet Connection Size : 0.38 Inches Specification Met : UPC