SharkBite Reducing Coupler is a brass push-fit fitting which is tough, withstanding high temperature and pressure. The coupler is designed for the connection of 2 unequal pipe sizes. Made from DZR brass its sleek design means they also look good in front of wall applications too. Using a simple push-fit action, SharkBite uses a stainless steel grab and O-Ring seal to provide a safe secure connection. SharkBite is suitable for plastic pipe (with inserts) and copper pipe, and can be easily demounted and reused.