Compression fittings include metal friction rings, iron nuts, and rubber gaskets. These fittings do not require soldering or gluing, but are not as resistant to vibration as soldered or welded fittings.

Malleable Iron Compression Coupling is galvanized for corrosion protection. You can depend on this coupling to make a long-lasting connection of 2 water pipes. It features EPDM gaskets and a metal friction ring. This coupling has a long pattern design and fits both IPS and Schedule 40 pipe.