Supply Line, Hose Inside Dia. 1/4 in, Hose Length 12 in, Hose Tube Material PVC, Hose Cover Material Nylon, Max. Working Pressure @ 70 F 125 psi, Temp. Range 40 Degrees to 150 Degrees F, Standards CSA, UPC, Hose Fitting A Material Brass, Hose Fitting B Material Brass, Hose Fitting A Type F Compression, Hose Fitting B Type Ballcock Nut, Hose Fitting A Size 3/8 in, Hose Fitting B Size 7/8 in, Hose Configuration Coupled Assembly, For Use With Toilet, Application Faucet These supply/connector hoses have fittings on both ends for connecting sink faucets to water lines. They are used in residential and commercial restrooms.Faucet connectors (sometimes called faucet supply lines) are used to connect a sink faucet to a water line so that water can flow to the faucet.