Plumb Pak K2622WHALF Quarter Turn Angle Valve 5/8-Inch 3/8-Inch OD with Water Hammer Arrestor, Lead-Free, Polished Chrome Plumb Pak's lead-free quarter-turn angle valve 5/8 OD by 3/8 OD with water hammer arrestor is a heavy duty quarter - turn shut-off valve with attached water hammer arrestor. Water hammer operates in any position once installed and eliminates 'knocking' in pipes. Chrome plated quarter turn angle valve with water hammer arrestor. Inlet: 5/8'O.D.(1/2' Nom copper) , Outlet: 3/8'O.D. Lead free. Features VALVE WITH WATER HAMMER ARRESTOR: Upgrade your plumbing and solve your loud pipes problem with this angle valve with arrestor DURABLE: Heavy duty chrome-plated shut-off valve is durable and lead-free for safety ELIMINATES LOUD PIPES: Water hammer operates in any position once installed and eliminates knocking or banging pipes FUNCTIONAL DESIGN: With its 5/8" O.D. (1/2" Nom copper) inlet and 3/8" O.D. outlet, this quarter turn valve is highly functional IDEAL SIZE: Measuring 1.25" x 3.25" x 7.9", this valve and water hammer is easy to install in any accessible location USA SHIPPING estimates delivery times and we work to get your item to you as quickly as possible and within those times, but please know it may take slightly longer than the estimate.