3-branch Brass Manifold Set for Radiant Heating
The most common material used to make fittings is brass. However, you can find fittings made from other metals and even plastic. Fittings have ridges that when crimped make a high-pressure seal.
Using the system of PEX fittings along with PEX tubing has definite advantages over metal and plastic piping. It is less expensive than rigid plastic and copper piping. It can be installed right from the spools. It requires less fittings. It last longer because it is not subject to corrosion.
