{"product_id":"wilkins-1-1-2in-rpz-backflow","title":"Zurn Wilkins 112-975XL Reduced Pressure Backflow Preventer - 1-1\/2 in - 112-975XL","description":"\u003ch2\u003eZurn Wilkins 112-975XL Reduced Pressure Backflow Preventer - 1-1\/2 in - 112-975XL\u003c\/h2\u003e\n\u003cp\u003eThe Wilkins 112-975XL (975XL series) Reduced Pressure Principle backflow preventer provides reliable high-hazard protection for potable water systems. Designed for irrigation, commercial, and fire-protection applications, this serviceable assembly combines a cast bronze wye-pattern body with corrosion-resistant internals for durability and easy maintenance.\u003c\/p\u003e\n\u003cp\u003eIncludes manufacturer specification sheet, installation and maintenance instructions, and parts lists. Order includes the backflow assembly only; valves, adapters, and additional accessories sold separately. For repair kits and detailed service procedures, consult Zurn Wilkins documentation or contact a certified installer.\u003c\/p\u003e\n\u003ch5\u003eFeatures\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003eModel\/SKU: 112-975XL (975XL series), nominal size 1-1\/2 in, threaded FNPT end connections for standard pipe fittings.\u003c\/li\u003e\n\u003cli\u003ePerformance: 175 psi maximum operating pressure; temperature rating to 180°F; hydrostatic test 350 psi (typical).\u003c\/li\u003e\n\u003cli\u003eConstruction: Cast bronze wye-pattern body with stainless-steel fasteners and springs; replaceable check and relief valve seats.\u003c\/li\u003e\n\u003cli\u003eServiceability: Top-access checks and relief valve for simplified on-site maintenance; compatible repair kits available to extend service life.\u003c\/li\u003e\n\u003cli\u003eInstallation benefits: Wye-pattern and short lay length reduce installation space and labor; suitable for domestic irrigation, commercial plumbing, and fire-protection lines.\u003c\/li\u003e\n\u003cli\u003eCompliance: Manufactured to industry standards and listings (ASSE, IAPMO, AWWA where applicable); follow local codes for approved installations.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003eWhat our Experts Think\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli data-section-id=\"1obwm3s\" data-start=\"27\" data-end=\"290\"\u003e\n\u003cstrong data-start=\"29\" data-end=\"60\"\u003eHigh-hazard RPZ protection:\u003c\/strong\u003e The Zurn Wilkins 112-975XL is a 1-1\/2\" Reduced Pressure Principle (RPZ) backflow preventer designed to protect potable water systems from both back-siphonage and backpressure contamination. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"fom1rc\" data-start=\"292\" data-end=\"537\"\u003e\n\u003cstrong data-start=\"294\" data-end=\"326\"\u003eCritical safety performance:\u003c\/strong\u003e Built for applications where water safety is essential—such as irrigation, commercial plumbing, and fire protection systems requiring high-level cross-connection control. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"erqzzh\" data-start=\"539\" data-end=\"750\"\u003e\n\u003cstrong data-start=\"541\" data-end=\"573\"\u003eDurable bronze construction:\u003c\/strong\u003e Heavy-duty cast bronze body with corrosion-resistant internal components ensures long service life in demanding commercial environments. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1pvv6jy\" data-start=\"752\" data-end=\"961\"\u003e\n\u003cstrong data-start=\"754\" data-end=\"786\"\u003eService-friendly wye design:\u003c\/strong\u003e Wye-pattern layout with separate access to check valves and relief valve simplifies maintenance and reduces downtime during servicing. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"j0t7uk\" data-start=\"963\" data-end=\"1157\"\u003e\n\u003cstrong data-start=\"965\" data-end=\"1000\"\u003eCompact installation footprint:\u003c\/strong\u003e Short lay length makes it easier to install or replace in tight mechanical spaces without major system modification. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"4abbxk\" data-start=\"1159\" data-end=\"1356\"\u003e\n\u003cstrong data-start=\"1161\" data-end=\"1192\"\u003eCode-compliant reliability:\u003c\/strong\u003e Commonly specified for systems requiring ASSE 1013 compliance and approval under major plumbing and water safety standards. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1xh9ro0\" data-start=\"1358\" data-end=\"1542\" data-is-last-node=\"\"\u003e\n\u003cstrong data-start=\"1360\" data-end=\"1390\"\u003eContractor-trusted choice:\u003c\/strong\u003e Widely used by professionals for its proven durability, predictable performance, and ease of field maintenance in high-risk potable water applications.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003e\n\u003cbr\u003eQ\u0026amp;A\u003c\/h5\u003e\n\u003cdiv class=\"\" data-turn-id-container=\"577d7484-d263-42c8-a0f7-814ad9b7acb3\" 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-(--sticky-padding-top)\" dir=\"auto\" data-turn-id=\"577d7484-d263-42c8-a0f7-814ad9b7acb3\" data-turn-id-container=\"577d7484-d263-42c8-a0f7-814ad9b7acb3\" data-testid=\"conversation-turn-23\" data-turn=\"user\"\u003e\u003c\/section\u003e\n\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"\" data-turn-id-container=\"request-WEB:9c2088d4-027f-44f7-bdb1-515626e9c8fa-11\" 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:9c2088d4-027f-44f7-bdb1-515626e9c8fa-11\" data-turn-id-container=\"request-WEB:9c2088d4-027f-44f7-bdb1-515626e9c8fa-11\" data-testid=\"conversation-turn-24\" data-turn=\"assistant\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-3 [--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=\"f2dbde86-090a-4b56-b7a2-ef30c458b4d2\" 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=\"289\"\u003e\u003cstrong data-start=\"0\" data-end=\"66\"\u003eQ: What is the \u003cspan class=\"hover:entity-accent entity-underline inline cursor-pointer align-baseline\"\u003e\u003cspan class=\"whitespace-normal\"\u003eZurn Wilkins 112-975XL Reduced Pressure Backflow Preventer 1-1\/2 in\u003c\/span\u003e\u003c\/span\u003e used for?\u003c\/strong\u003e\u003cbr data-start=\"66\" data-end=\"69\"\u003eA: It provides high-hazard backflow protection in potable water systems, preventing contaminated water from entering the clean water supply in applications like irrigation, commercial plumbing, and fire protection lines.\u003c\/p\u003e\n\u003cp data-start=\"291\" data-end=\"474\"\u003e\u003cstrong data-start=\"291\" data-end=\"335\"\u003eQ: What type of device is the 112-975XL?\u003c\/strong\u003e\u003cbr data-start=\"335\" data-end=\"338\"\u003eA: It is a Reduced Pressure Zone (RPZ) backflow preventer, designed for maximum protection against both back-siphonage and backpressure.\u003c\/p\u003e\n\u003cp data-start=\"476\" data-end=\"673\"\u003e\u003cstrong data-start=\"476\" data-end=\"519\"\u003eQ: What are key features of this model?\u003c\/strong\u003e\u003cbr data-start=\"519\" data-end=\"522\"\u003eA: It includes a lead-free bronze body, wye-pattern design for compact installation, dual check valves, and a relief valve for safe pressure discharge.\u003c\/p\u003e\n\u003cp data-start=\"675\" data-end=\"864\"\u003e\u003cstrong data-start=\"675\" data-end=\"714\"\u003eQ: Why is the RPZ design important?\u003c\/strong\u003e\u003cbr data-start=\"714\" data-end=\"717\"\u003eA: It provides the highest level of backflow protection by discharging water when unsafe pressure conditions occur, ensuring drinking water safety.\u003c\/p\u003e\n\u003cp data-start=\"866\" data-end=\"1035\"\u003e\u003cstrong data-start=\"866\" data-end=\"904\"\u003eQ: Where is it commonly installed?\u003c\/strong\u003e\u003cbr data-start=\"904\" data-end=\"907\"\u003eA: Used in irrigation systems with chemical exposure risk, commercial buildings, and other high-risk potable water applications.\u003c\/p\u003e\n\u003cp data-start=\"1037\" data-end=\"1199\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\u003cstrong data-start=\"1037\" data-end=\"1072\"\u003eQ: Does it require maintenance?\u003c\/strong\u003e\u003cbr data-start=\"1072\" data-end=\"1075\"\u003eA: Yes, it requires periodic certified testing and inspection to ensure proper operation and compliance with plumbing codes.\u003c\/p\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\u003ch5\u003e\n\u003cbr\u003eMaintenance Tips\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eInspect regularly for leaks, corrosion, and relief valve discharge activity.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eTest annually by a certified tester to ensure proper reduced pressure backflow prevention and code compliance.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eFlush the assembly periodically to reduce sediment buildup in check valves and relief components.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eClean strainers and internal parts to maintain consistent flow and reliable operation.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eReplace worn seals, O-rings, or check modules with approved repair kits as needed.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMaintain clear access for inspection, testing, and servicing, and protect from freezing conditions.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Zurn","offers":[{"title":"Default Title","offer_id":45805650477247,"sku":"112-975XL","price":1256.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0683\/5703\/0079\/files\/112-975XL-2_b7321660-184c-4776-97e1-c4bf03302aa2.jpg?v=1782961644","url":"https:\/\/www.mybackyardzone.com\/products\/wilkins-1-1-2in-rpz-backflow","provider":"Your Outdoor Setup Starts Here","version":"1.0","type":"link"}