This chrome plated brass fitting will allow you to adapt 1/2 in. Slip joint connections to 3/8 in. Compression. This set includes the appropriate washer. Easy install for both Pros and DIYers. Slip joint side has NPS threads Includes washer Used to adapt slip joint valves to modern faucet connections 1-piece per package Over tightening can cause leaks Does not include compression nut or ferrule Chrome Plated Lead Free Brass NSF 61 and 372 Certified Double Fitting Size 1/2" x 3/8" OD Comp Fitting 1 size 1/2" Fitting 2 size 3/8" OD Comp Product Length (in.) .551 inApplication Potable Water Color Family Chrome Color/Finish Chrome Compatible Pipe Material Multi-Purpose Connection 1 Slip-Joint Connection 2 Comp Connectivity Compression Features Lead Free Fitting or Connector Type Adapter Fitting/ Connector Collection Brass Material Brass Maximum working pressure (psi) 150 Maximum Working Temperature (F) 200 Pack Size 1 Pipe or Fitting Product Type Fittings & Connectors Product Weight (lb.) .0495 lb Reducing Fitting No