{"product_id":"1-950xlt2-1in-fnpt-double-check-valve-assy-lf","title":"Zurn  Wilkins 950XLT2 1\" FNPT Top-Access Double Check Valve - 1-950XLT2","description":"\u003ch2\u003eZurn  Wilkins 950XLT2 1\" FNPT Top-Access Double Check Valve - 1-950XLT2\u003c\/h2\u003e\n\u003cp\u003eThe Wilkins 950XLT2 1\" FNPT Double Check Valve Assembly is a testable, lead‑free backflow preventer designed for low‑hazard potable water systems. Its top‑access check covers simplify service and in-line maintenance, while the compact lay length fits standard valve boxes for below‑grade installation.\u003c\/p\u003e\n\u003cp\u003eThis assembly protects potable lines from backsiphonage and backpressure in applications where a double‑check is appropriate. Corrosion‑resistant stainless fasteners and springs, full‑port ball valves and protected test cock plugs improve durability and winterization. Download the specification sheet and installation manual linked on the product page for dimensional drawings, parts breakdown and testing procedures.\u003c\/p\u003e\n\u003ch5\u003eFeatures\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLead‑free bronze body:\u003c\/strong\u003e ASTM B584 cast bronze construction for corrosion resistance and long service life.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTop access design:\u003c\/strong\u003e Two top‑mounted access covers allow quick inspection and repair without removing the unit from the line.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eServiceable internals:\u003c\/strong\u003e Replaceable Noryl\n\u003ch5\u003eFeatures\u003c\/h5\u003e\n seats and silicone seal rings reduce downtime and maintenance cost.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePerformance ratings:\u003c\/strong\u003e 175 psi maximum working pressure and temperature rating up to 180°F; hydrostatic test to 350 psi.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnections \u0026amp; lay length:\u003c\/strong\u003e 1\" FNPT female threaded inlet\/outlet with compact lay length to fit standard meter\/valve boxes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCertifications:\u003c\/strong\u003e ASSE 1015, IAPMO\/cUPC, AWWA C510, CSA\/NSF listings where applicable — approved for potable systems.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003eWhat our Experts Think\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan\u003eReliable \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e1\" FNPT top-access double check valve assembly\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e designed for non-health hazard backflow prevention.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eCompact \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003elead-free bronze construction\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e ensures durability, corrosion resistance, and long service life.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eFeatures \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003etop-access design\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e for simplified in-line maintenance and faster servicing.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eProvides effective protection against \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003ebackpressure and backsiphonage in potable water systems\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eEngineered for \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eresidential, commercial, and light industrial applications\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e requiring code-compliant backflow protection.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eIncludes \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eresilient seated check modules\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e for dependable sealing performance and reduced leakage risk.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eDesigned for \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003elow head loss operation\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, helping maintain system efficiency.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eBuilt to meet \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003erecognized industry standards for safety and potable water compliance\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eA trusted choice for professionals seeking a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eservice-friendly and durable backflow prevention solution\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003e\n\u003cbr\u003eQ\u0026amp;A\u003c\/h5\u003e\n\u003cdiv class=\"qMYqUG_convSearchResultHighlightRoot\"\u003e\n\u003cdiv class=\"\" data-turn-id-container=\"request-WEB:b1fe4413-acf0-46d1-93e4-e0f022aad894-7\" 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:b1fe4413-acf0-46d1-93e4-e0f022aad894-7\" data-turn-id-container=\"request-WEB:b1fe4413-acf0-46d1-93e4-e0f022aad894-7\" data-testid=\"conversation-turn-16\" 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=\"32cba3d9-4855-4118-bd95-49f32d7f789e\" 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\u003cp data-start=\"0\" data-end=\"316\"\u003e\u003cstrong data-start=\"0\" data-end=\"90\"\u003eQ: What is the Zurn Wilkins 950XLT2 1\" FNPT Top-Access Double Check Valve (1-950XLT2)?\u003c\/strong\u003e\u003cbr data-start=\"90\" data-end=\"93\"\u003eA: A 1-inch lead-free double check valve assembly designed to prevent backflow and protect potable water systems in low-hazard applications such as irrigation and commercial plumbing. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"318\" data-end=\"565\"\u003e\u003cstrong data-start=\"318\" data-end=\"360\"\u003eQ: Where is the 950XLT2 commonly used?\u003c\/strong\u003e\u003cbr data-start=\"360\" data-end=\"363\"\u003eA: Ideal for irrigation systems, fire sprinkler lines, and non-health-hazard water service connections where backpressure or backsiphonage protection is required. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"567\" data-end=\"794\"\u003e\u003cstrong data-start=\"567\" data-end=\"600\"\u003eQ: What are its key features?\u003c\/strong\u003e\u003cbr data-start=\"600\" data-end=\"603\"\u003eA: Top-access design for easy in-line maintenance, corrosion-resistant stainless steel components, and test cocks protected against debris and insects. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"796\" data-end=\"1007\"\u003e\u003cstrong data-start=\"796\" data-end=\"841\"\u003eQ: What are the operating specifications?\u003c\/strong\u003e\u003cbr data-start=\"841\" data-end=\"844\"\u003eA: Rated for up to 175 PSI working pressure, 350 PSI hydrostatic test pressure, and maximum operating temperature of 180°F. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"1009\" data-end=\"1234\"\u003e\u003cstrong data-start=\"1009\" data-end=\"1055\"\u003eQ: Why is the top-access design important?\u003c\/strong\u003e\u003cbr data-start=\"1055\" data-end=\"1058\"\u003eA: It allows internal checks to be serviced or replaced without removing the entire valve body, reducing downtime and maintenance costs. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"1236\" data-end=\"1455\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\u003cstrong data-start=\"1236\" data-end=\"1273\"\u003eQ: Is the Zurn 950XLT2 ?\u003c\/strong\u003e\u003cbr data-start=\"1273\" data-end=\"1276\"\u003eA: Yes. It is typically listed to ASSE 1015 and approved for use in potable water systems where double check backflow protection is required. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"z-0 flex min-h-[46px] justify-start\"\u003e\u003cbr\u003e\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\u003eMaintenance Tips\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eInspect regularly for leaks, corrosion, or unusual pressure drops.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eTest annually to ensure proper double-check backflow prevention performance.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eUse top-access feature for convenient inspection and servicing without full disassembly.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eFlush the system periodically to reduce sediment and debris buildup.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eClean or replace check assemblies if sticking or reduced flow is observed.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eReplace worn seals, O-rings, or internal components with approved repair kits as needed.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eProtect from freezing and keep accessible for routine maintenance and testing\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Zurn","offers":[{"title":"Default Title","offer_id":45805519175871,"sku":"1-950XLT2","price":401.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0683\/5703\/0079\/files\/1-950XLT2-2_0c2056cd-c004-42a5-94e8-ffe453846e50.jpg?v=1782958715","url":"https:\/\/www.mybackyardzone.com\/products\/1-950xlt2-1in-fnpt-double-check-valve-assy-lf","provider":"Your Outdoor Setup Starts Here","version":"1.0","type":"link"}