PEX compression fittings are used to make connections from PEX tubing to PEX tubing, PEX tubing to manifolds, PEX tubing to copper, and PEX tubing to faucets & fixtures, among other applications. Fittings are commonly made of brass, but are also available in plastic, bronze, and stainless steel.
Advantages of PEX fittings include cost effectiveness, flexibility, and durability when compared to traditional copper fitting alternatives. Due to the flexibility of PEX, a standard installation will require less connections than if the same installation was performed using traditional copper pipe and fittings. Consequently, having fewer connection requirements means less fittings and lower labor costs. Also, fewer fittings in the system means less leak potential.