{"product_id":"wilkins-34-950xlt-0-75-inch-double-check-valve-assy-fnpt-x-fnp","title":"Zurn Wilkins 34-950XLT 3\/4\" Top-Access Double Check Valve (FNPT x FNPT) - 34-950XLT","description":"\u003ch2\u003eZurn Wilkins 34-950XLT 3\/4\" Top-Access Double Check Valve (FNPT x FNPT) - 34-950XLT\u003c\/h2\u003e\n\u003cp\u003eThe Wilkins 34-950XLT is a 3\/4\" top-access double-check valve assembly engineered for reliable backflow prevention in potable and low-hazard systems. Its compact cast-bronze body fits standard meter boxes for below-grade installation and provides easy, top-side service access without removing the assembly.\u003c\/p\u003e\n\u003cp\u003eThis assembly meets common industry approvals for double-check devices and is supported by available repair kits and detailed installation and maintenance documentation. Replacement parts and repair kits are offered to service checks and seals in the field; the top-access covers reduce downtime and allow in-place servicing. Review the product specification and installation instructions before installing below grade, and follow local codes for backflow prevention and testing.\u003c\/p\u003e\n\u003ch5\u003eFeatures\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e3\/4\" FNPT x FNPT female threaded connections for in-line installation in standard meter boxes.\u003c\/li\u003e\n\u003cli\u003eCast bronze body with stainless-steel fasteners and FDA-approved elastomers for long-term durability.\u003c\/li\u003e\n\u003cli\u003eTop access check covers and tethered test cock caps simplify inspection, testing, and maintenance.\u003c\/li\u003e\n\u003cli\u003e175 PSI working pressure, 180°F maximum operating temperature, and 350 PSI hydrostatic test rating.\u003c\/li\u003e\n\u003cli\u003eDesigned to protect potable water from back-siphonage and back-pressure; commonly used in irrigation and light commercial applications.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003eWhat our Experts Think\u003c\/h5\u003e\n\u003cdiv class=\"qMYqUG_convSearchResultHighlightRoot\"\u003e\n\u003cdiv class=\"\" data-turn-id-container=\"request-WEB:2a39c126-ada6-4109-8eee-7ce7c559202b-7\" data-is-intersecting=\"true\"\u003e\n\u003csection class=\"text-token-text-primary w-full focus:outline-none has-data-writing-block:pointer-events-none [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\" data-turn-id=\"request-WEB:2a39c126-ada6-4109-8eee-7ce7c559202b-7\" data-turn-id-container=\"request-WEB:2a39c126-ada6-4109-8eee-7ce7c559202b-7\" data-testid=\"conversation-turn-14\" data-turn=\"assistant\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv data-conversation-screenshot-content=\"\" class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv data-message-author-role=\"assistant\" data-message-id=\"7f891469-d9fc-4225-a9fd-0b363577ca41\" data-turn-start-message=\"true\" dir=\"auto\" data-message-model-slug=\"gpt-5-3-mini\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert wrap-break-word w-full light markdown-new-styling\"\u003e\n\u003cul data-start=\"27\" data-end=\"1552\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\n\u003cli data-section-id=\"1h234oz\" data-start=\"27\" data-end=\"269\"\u003e\n\u003cstrong data-start=\"29\" data-end=\"64\"\u003eCompact, code-ready protection:\u003c\/strong\u003e The Zurn Wilkins 34-950XLT is a trusted 3\/4\" double check valve assembly designed for low-hazard potable water systems like irrigation and commercial service lines. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"8044g4\" data-start=\"271\" data-end=\"482\"\u003e\n\u003cstrong data-start=\"273\" data-end=\"306\"\u003eTop-access service advantage:\u003c\/strong\u003e Built with top-access check covers, allowing quick in-line inspection and maintenance without removing the unit from the piping system. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"t4zt57\" data-start=\"484\" data-end=\"697\"\u003e\n\u003cstrong data-start=\"486\" data-end=\"519\"\u003eReliable backflow prevention:\u003c\/strong\u003e Protects against both back-siphonage and backpressure, helping safeguard municipal and private water supplies in compliant installations. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"18jxpxx\" data-start=\"699\" data-end=\"924\"\u003e\n\u003cstrong data-start=\"701\" data-end=\"737\"\u003eDurable commercial construction:\u003c\/strong\u003e Cast bronze body with stainless steel springs and corrosion-resistant hardware ensures long service life in underground or meter-box applications. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"13jhak1\" data-start=\"926\" data-end=\"1130\"\u003e\n\u003cstrong data-start=\"928\" data-end=\"957\"\u003eHigh performance ratings:\u003c\/strong\u003e Designed for up to 175 PSI working pressure and 350 PSI hydrostatic test pressure, supporting stable operation in demanding systems. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1yptwy2\" data-start=\"1132\" data-end=\"1344\"\u003e\n\u003cstrong data-start=\"1134\" data-end=\"1167\"\u003eInstaller-friendly footprint:\u003c\/strong\u003e Compact design fits standard valve boxes, making it a go-to choice for retrofit and new irrigation installations where space is limited. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"rosnoy\" data-start=\"1346\" data-end=\"1552\" data-is-last-node=\"\"\u003e\n\u003cstrong data-start=\"1348\" data-end=\"1376\"\u003eProfessional preference:\u003c\/strong\u003e Widely specified by contractors for its balance of reliability, serviceability, and compliance with industry standards (ASSE\/IAPMO\/AWWA). \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch5\u003e\n\u003cbr\u003eQ\u0026amp;A\u003c\/h5\u003e\n\u003cp data-start=\"0\" data-end=\"264\"\u003e\u003cstrong data-start=\"0\" data-end=\"100\"\u003eQ: What is the Zurn Wilkins 34-950XLT 3\/4\" Top-Access Double Check Valve (FNPT x FNPT) used for?\u003c\/strong\u003e\u003cbr data-start=\"100\" data-end=\"103\"\u003eA: It prevents backflow contamination in low- to moderate-hazard potable water systems such as irrigation, hose connections, and small commercial plumbing lines.\u003c\/p\u003e\n\u003cp data-start=\"266\" data-end=\"465\"\u003e\u003cstrong data-start=\"266\" data-end=\"322\"\u003eQ: What type of backflow preventer is the 34-950XLT?\u003c\/strong\u003e\u003cbr data-start=\"322\" data-end=\"325\"\u003eA: It is a Double Check Valve Assembly (DCVA) designed to protect against back-siphonage and backpressure in non-health-hazard applications.\u003c\/p\u003e\n\u003cp data-start=\"467\" data-end=\"650\"\u003e\u003cstrong data-start=\"467\" data-end=\"509\"\u003eQ: What does “top-access” design mean?\u003c\/strong\u003e\u003cbr data-start=\"509\" data-end=\"512\"\u003eA: It allows internal components to be serviced from the top without removing the entire valve, reducing maintenance time and labor costs.\u003c\/p\u003e\n\u003cp data-start=\"652\" data-end=\"835\"\u003e\u003cstrong data-start=\"652\" data-end=\"695\"\u003eQ: What are key features of this model?\u003c\/strong\u003e\u003cbr data-start=\"695\" data-end=\"698\"\u003eA: Lead-free XLT construction, FNPT x FNPT connections, dual independent check valves, and compact inline design for tight installations.\u003c\/p\u003e\n\u003cp data-start=\"837\" data-end=\"1011\"\u003e\u003cstrong data-start=\"837\" data-end=\"875\"\u003eQ: Where is it commonly installed?\u003c\/strong\u003e\u003cbr data-start=\"875\" data-end=\"878\"\u003eA: Residential and commercial irrigation systems, water distribution lines, and other approved potable water protection applications.\u003c\/p\u003e\n\u003cp data-start=\"1013\" data-end=\"1181\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\u003cstrong data-start=\"1013\" data-end=\"1048\"\u003eQ: Does it require maintenance?\u003c\/strong\u003e\u003cbr data-start=\"1048\" data-end=\"1051\"\u003eA: Yes, periodic inspection and testing are required to ensure proper sealing and compliance with local plumbing and safety codes.\u003c\/p\u003e\n\u003ch5\u003e\n\u003cbr\u003eMaintenance Tips\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eInspect regularly for leaks, corrosion, or abnormal pressure behavior.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eTest annually to ensure proper double-check backflow prevention and code compliance.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eUse top-access design for convenient servicing without full removal of the valve.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eFlush the system periodically to reduce sediment buildup and maintain smooth operation.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eClean or replace internal check components if sticking or reduced flow is observed.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eReplace worn seals, O-rings, or internal kits with approved parts when needed.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eProtect from freezing and maintain clear access for routine maintenance and testing.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Zurn","offers":[{"title":"Default Title","offer_id":45805587169471,"sku":"34-950XLT","price":265.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0683\/5703\/0079\/files\/34-950XLT-2_379d5ba9-7808-4699-91f3-3ed51be9f333.jpg?v=1782960581","url":"https:\/\/www.mybackyardzone.com\/products\/wilkins-34-950xlt-0-75-inch-double-check-valve-assy-fnpt-x-fnp","provider":"Your Outdoor Setup Starts Here","version":"1.0","type":"link"}