The Easi Plumb Mounting Wall Plate is a brass fitting that can be mounted to a wall using the attached wall plate and screws. This fitting is WRAS approved and comes with full fitting instructions. Simply insert the pipe and push hard, the internal teeth will bite down and grip tight, while a specially formulated O-ring compresses to create a perfect seal. The joint can be disassembled just as easily using a disconnecting tool. The mounting wall plate is made of brass and has a size of 1/2 inch.