Why Plastic PEX Fittings are Just as Good (If Not Better) Than Metal

If you’re concerned about using plastic fittings instead of metal for PEX, worry no more. Professional plumbers are buying three times more plastic than brass.

Plastic PEXFamily Handyman

Plastic PEX fittings are OK

If you’re concerned about using plastic fittings instead of metal for PEX, worry no more. Professional plumbers are buying three times more plastic than brass. Brass fittings cost about five times as much, which likely has something to do with it. And pros don’t want a callback to fix their own work on their dime. So obviously, pros trust the plastic fittings. Manufacturers trust them as well; the warranties for plastic fittings are similar if not identical to those for their metal counterparts.

Popular Videos

Metal fittings are required, however, where the fitting is exposed to UV light. Also, no plastic pipe or fittings can be used within 18 in. of water heating devices. Check your local building code in case there are other requirements where you live. Plus: Learn everything you need to know about PEX supply pipe here.

Brad Holden
Brad Holden, an associate editor at The Family Handyman, has been building cabinets and furniture for 30 years. In that time, he has absorbed so many slivers and ingested so much sawdust that he's practically made of wood.