{"product_id":"keeney-5-8-in-cts-in-x-3-8-in-compression-brass-shut-off-valve-with-water-hammer","title":"Keeney 5\/8 in. CTS in. X 3\/8 in. Compression Brass Shut-Off Valve with Water Hammer","description":"\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003eKeeney 5\/8 in. CTS to 3\/8 in. Compression Brass Shut-Off Valve with Water Hammer\u003c\/strong\u003e combines precise shut-off control with built-in water hammer suppression for quieter, more reliable piping in residential water lines.\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable brass body with chrome-plated finish:\u003c\/strong\u003e Resists corrosion and stands up to daily use while maintaining a clean, polished look in exposed or under-sink installations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCTS to compression connection:\u003c\/strong\u003e Inlet is 5\/8 in. CTS, outlet is 3\/8 in. compression, making it compatible with common copper tubing and faucet supply lines for quick, secure installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWater hammer arrestor integrated:\u003c\/strong\u003e Helps reduce banging and pressure surges when you shut off the supply, protecting pipes and fixtures from repeated stress.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuarter-turn shut-off:\u003c\/strong\u003e Smooth, one-hand operation for fast, reliable control—ideal for quick maintenance or fixture replacement.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePressure and temperature tolerance:\u003c\/strong\u003e Rated up to 125 psi and 160°F, suitable for typical residential hot and cold-water applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLead-free for potable water:\u003c\/strong\u003e Built to meet modern safety standards, ensuring clean, safe water in every connection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConvenient, versatile use:\u003c\/strong\u003e Perfect for under-sink shut-offs, faucet lines, vanity fixtures, and other everyday water supply tasks where space is at a premium.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWho benefits most? Homeowners upgrading vanity or kitchen faucet lines, DIY enthusiasts replacing aging shut-off valves, and professionals seeking a compact, reliable valve with noise reduction built in. The Keeney valve minimizes installation steps by combining a reliable compression connection with a ready-made water hammer solution, reducing the need for additional accessories and fitting complexity.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eInstallation and care tips\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eTurn off the main water supply before starting. \u003c\/li\u003e\n\u003cli\u003eFor the compression side, ensure the 3\/8 in. compression fitting seats fully against the tubing and tightens evenly to prevent leaks.\u003c\/li\u003e\n\u003cli\u003eOn the CTS inlet, ensure a clean, square connection to the copper tube for a secure seal. \u003c\/li\u003e\n\u003cli\u003eUse appropriate sealant or pipe tape only on threaded connections if required by your installation (the compression side does not require paste). \u003c\/li\u003e\n\u003cli\u003eAfter installation, slowly turn the water back on and check for leaks around both ends. If a drip appears, snug the fittings a touch more, then re-check.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eSpecs at a glance\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFinish: Chrome Plated\u003c\/li\u003e\n\u003cli\u003eMaterial: Brass\u003c\/li\u003e\n\u003cli\u003eTurn Type: Quarter Turn\u003c\/li\u003e\n\u003cli\u003eEnd 1 Type\/Size: CTS, 5\/8 in.\u003c\/li\u003e\n\u003cli\u003eEnd 2 Type\/Size: Compression, 3\/8 in.\u003c\/li\u003e\n\u003cli\u003eMaximum Pressure: 125 psi\u003c\/li\u003e\n\u003cli\u003eMaximum Temperature: 160°F\u003c\/li\u003e\n\u003cli\u003eLead Content: Lead-Free\u003c\/li\u003e\n\u003cli\u003eUsage: Water Supply\u003c\/li\u003e\n\u003cli\u003ePackaging: Clamshell\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eInvest in a valve that blends dependable mechanics with practical silence. The Keeney 5\/8 in. CTS to 3\/8 in. compression brass shut-off valve with water hammer is a thoughtful upgrade for quieter, safer, and more efficient home plumbing today.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Keeney","offers":[{"title":"Default Title","offer_id":52201770156306,"sku":"4674321","price":31.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0928\/1024\/8466\/files\/4674321_A.eps_High.jpg?v=1776380170","url":"https:\/\/nationalhardwaregroup.com\/products\/keeney-5-8-in-cts-in-x-3-8-in-compression-brass-shut-off-valve-with-water-hammer","provider":"National Hardware Group","version":"1.0","type":"link"}