{"product_id":"reduced-pressure-principle-assy-173214","title":"Zurn Wilkins 34-975XLUS 3\/4 in Reduced Pressure Backflow Assembly, Bronze - 34-975XLUS","description":"\u003ch2\u003eZurn Wilkins 34-975XLUS 3\/4 in Reduced Pressure Backflow Assembly, Bronze - 34-975XLUS\u003c\/h2\u003e\n\u003cp\u003eThe Wilkins 34-975XLUS Reduced Pressure Principle Backflow Assembly delivers high-hazard protection for water systems. Designed for 3\/4 in lines, this wye-pattern backflow preventer features a cast bronze body and stainless steel internal components for corrosion resistance. Union ball valve shutoffs allow quick body removal for winterization or service. The assembly is ASSE listed and meets IAPMO, CSA and AWWA compliance for reliable performance.\u003c\/p\u003e\n\u003cp\u003eRecommended for irrigation and commercial installations where dependable backflow protection is required. Refer to the product spec sheet and installation instructions before specifying or installing. Have the assembly commissioned and annually tested by a certified backflow tester.\u003c\/p\u003e\n\u003ch5\u003eFeatures\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003eNominal size: 3\/4 in; maximum operating pressure: 175 psi.\u003c\/li\u003e\n\u003cli\u003eConstruction: cast bronze wye-pattern body, stainless steel internals, Buna-N and silicone seals.\u003c\/li\u003e\n\u003cli\u003eFeatures: union ball valve shutoffs for easy removal, wye-type strainer (975XLUS), and durable seats for long service life.\u003c\/li\u003e\n\u003cli\u003eCertifications \u0026amp; applications: ASSE listed; IAPMO and CSA certified; AWWA compliant. Ideal for irrigation, commercial, and high-hazard protection.\u003c\/li\u003e\n\u003cli\u003eDocumentation: specification sheet, repair parts list, installation and freeze-protection instructions available for download.\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-8\" 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-8\" data-turn-id-container=\"request-WEB:2a39c126-ada6-4109-8eee-7ce7c559202b-8\" 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=\"1c317ef2-6285-4217-9428-13fc06c36a37\" 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=\"1530\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\n\u003cli data-section-id=\"qzjncf\" data-start=\"27\" data-end=\"282\"\u003e\n\u003cstrong data-start=\"29\" data-end=\"65\"\u003eHigh-hazard protection standard:\u003c\/strong\u003e The Zurn Wilkins 34-975XLUS is a reduced pressure principle (RPZ) assembly designed for maximum protection against both backsiphonage and backpressure in potable water systems. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"17yf94w\" data-start=\"284\" data-end=\"517\"\u003e\n\u003cstrong data-start=\"286\" data-end=\"322\"\u003eBuilt for critical applications:\u003c\/strong\u003e Commonly used in irrigation, commercial buildings, and fire protection systems where contamination risk is considered high and code enforcement is strict. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"g3k69r\" data-start=\"519\" data-end=\"736\"\u003e\n\u003cstrong data-start=\"521\" data-end=\"556\"\u003eHeavy-duty bronze construction:\u003c\/strong\u003e Cast bronze body with stainless steel internal components provides long-term durability and corrosion resistance in demanding environments. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"ifb7mp\" data-start=\"738\" data-end=\"935\"\u003e\n\u003cstrong data-start=\"740\" data-end=\"768\"\u003eService-friendly layout:\u003c\/strong\u003e Wye-pattern design with union-style shutoffs allows easier removal, repair, and winterization without full system disassembly. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"h7qrir\" data-start=\"937\" data-end=\"1130\"\u003e\n\u003cstrong data-start=\"939\" data-end=\"969\"\u003eStable performance rating:\u003c\/strong\u003e Rated for up to ~175 PSI working pressure, making it suitable for most municipal and commercial water supply conditions. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1qtu84g\" data-start=\"1132\" data-end=\"1324\"\u003e\n\u003cstrong data-start=\"1134\" data-end=\"1165\"\u003eCode-compliant engineering:\u003c\/strong\u003e Meets major standards including ASSE 1013, IAPMO, CSA, AWWA, and USC Foundation approval for cross-connection control. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1bfclcf\" data-start=\"1326\" data-end=\"1530\" data-is-last-node=\"\"\u003e\n\u003cstrong data-start=\"1328\" data-end=\"1363\"\u003eProfessional-grade reliability:\u003c\/strong\u003e Preferred by installers and inspectors for high-risk potable water protection where RPZ certification is required, not optional. \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=\"293\"\u003e\u003cstrong data-start=\"0\" data-end=\"102\"\u003eQ: What is the Zurn Wilkins 34-975XLUS 3\/4 in Reduced Pressure Backflow Assembly, Bronze used for?\u003c\/strong\u003e\u003cbr data-start=\"102\" data-end=\"105\"\u003eA: It provides high-level backflow protection in potable water systems where health hazards may exist, such as irrigation with fertilizers, commercial plumbing, and cross-connection risks.\u003c\/p\u003e\n\u003cp data-start=\"295\" data-end=\"469\"\u003e\u003cstrong data-start=\"295\" data-end=\"340\"\u003eQ: What type of device is the 34-975XLUS?\u003c\/strong\u003e\u003cbr data-start=\"340\" data-end=\"343\"\u003eA: It is a Reduced Pressure Zone (RPZ) backflow preventer, designed for high-hazard applications requiring maximum protection.\u003c\/p\u003e\n\u003cp data-start=\"471\" data-end=\"636\"\u003e\u003cstrong data-start=\"471\" data-end=\"504\"\u003eQ: What does “XLUS” indicate?\u003c\/strong\u003e\u003cbr data-start=\"504\" data-end=\"507\"\u003eA: It typically denotes lead-free bronze construction and compliance with U.S. potable water safety standards for RPZ assemblies.\u003c\/p\u003e\n\u003cp data-start=\"638\" data-end=\"813\"\u003e\u003cstrong data-start=\"638\" data-end=\"681\"\u003eQ: What are key features of this model?\u003c\/strong\u003e\u003cbr data-start=\"681\" data-end=\"684\"\u003eA: Dual check valves, a differential relief valve, lead-free bronze body, compact 3\/4\" inline design, and serviceable components.\u003c\/p\u003e\n\u003cp data-start=\"815\" data-end=\"977\"\u003e\u003cstrong data-start=\"815\" data-end=\"848\"\u003eQ: Where is it commonly used?\u003c\/strong\u003e\u003cbr data-start=\"848\" data-end=\"851\"\u003eA: Irrigation systems with chemical injection, commercial buildings, fire protection lines, and other high-risk water systems.\u003c\/p\u003e\n\u003cp data-start=\"979\" data-end=\"1164\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\u003cstrong data-start=\"979\" data-end=\"1026\"\u003eQ: Does it require testing and maintenance?\u003c\/strong\u003e\u003cbr data-start=\"1026\" data-end=\"1029\"\u003eA: Yes, RPZ assemblies require regular certified testing and maintenance to ensure proper discharge and compliance with plumbing 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, 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 protection 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 performance and flow.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eReplace worn seals, O-rings, or check assemblies with approved repair kits when needed.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMaintain clear access for inspection and testing, and protect from freezing conditions.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Zurn","offers":[{"title":"Default Title","offer_id":45805587300543,"sku":"34-975XLUS","price":630.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0683\/5703\/0079\/files\/34-975XLUS-2.jpg?v=1782960585","url":"https:\/\/www.mybackyardzone.com\/products\/reduced-pressure-principle-assy-173214","provider":"Your Outdoor Setup Starts Here","version":"1.0","type":"link"}