BrassCraft® Faucet Supply Kit includes everything that you need to install the hot or cold water to your faucet. Components include - (1) 1/2 in Nominal Compression inlet x 3/8 in OD Compression outlet multi-turn angle water shut-off valve with brass stem, (1) 3/8 in OD x 12 in length riser and (1) shallow flange. All components are polished chrome for a clean professional appearance. An angle valve is most often used when the water pipe enters the room from the wall.