Flexible water supply tubes

Flexible water supply tubes are flexible pipes that connect plumbing fixtures or appliances to your home's main water supply. These flexible pipes have largely replaced chrome-covered rigid copper or brass and come in a variety of materials, lengths, and diameters to fit any need, and are easily connected with simple wrenches or pliers. There is no pipe bending required, nor compression fittings that can be prone to leaking. Thus, just about any DIYer can successfully use flexible water supply tubes when installing a new toilet, faucet, or other plumbing fixture.

Flexible water supply tubing comes in four main types, with connections that are typically 1/4-, 3/8-, or 1/2-inch to match various water supply pipe and fixture tailpiece sizes. Before buying, it’s always a good idea to have a look under the sink or behind the fixture to see what length of flex tube you will need and the size of the end fittings required. Often, there is even a tag on the old flex tube that indicates the length and size of each end nut so you don’t have to measure or guess.