{"product_id":"wilkins-3-4in-rpz-backflow-172917","title":"Zurn Wilkins 34-975XLFT 3\/4\" RPZ Backflow Preventer, Bronze - 34-975XLFT","description":"\u003ch2\u003eZurn Wilkins 34-975XLFT 3\/4\" RPZ Backflow Preventer, Bronze - 34-975XLFT\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWilkins 34-975XLFT\u003c\/strong\u003e is a 3\/4\" Reduced Pressure Zone (RPZ) backflow preventer engineered for high-hazard potable water protection. Its compact, serviceable design and robust bronze construction make it suitable for irrigation, fire protection cross-connection control, and commercial plumbing systems where reliable backflow prevention is required.\u003c\/p\u003e\n\u003cp\u003eThis unit is supplied as a 34-975XLFT model (less shutoff\/ball valves). For installation, testing intervals, and repair parts, consult the included specification and installation\/maintenance documents. Professional installation and annual testing by a certified backflow tester are recommended to ensure continued compliance with local codes.\u003c\/p\u003e\n\u003ch5\u003eFeatures\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eReduced pressure principle:\u003c\/strong\u003e Dual, spring-loaded checks with a differential relief valve provide dependable protection against backpressure and backsiphonage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize \u0026amp; pressure:\u003c\/strong\u003e 3\/4\" inlet\/outlet with a maximum working pressure of 175 psi for typical municipal and irrigation systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConstruction:\u003c\/strong\u003e Bronze body and corrosion-resistant internal components built for long-term durability in outdoor and buried installations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnections:\u003c\/strong\u003e Male pipe thread configuration (less ball valves) for straightforward connection to existing piping; male 45° flair SAE test fitting for accurate testing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eServiceability:\u003c\/strong\u003e Modular design allows access to internal check assemblies and relief valve for field maintenance and repair without full removal.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApprovals \u0026amp; listings:\u003c\/strong\u003e Manufacturer documentation lists ASSE 1013 and other common industry listings—refer to the product specification sheet for the complete set of certifications for this model.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTypical applications:\u003c\/strong\u003e Irrigation systems, commercial plumbing, and other high-hazard installations requiring RPZ protection.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003eWhat our Experts Think\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli data-section-id=\"18lbth0\" data-start=\"208\" data-end=\"416\"\u003e\n\u003cstrong data-start=\"210\" data-end=\"239\"\u003eHigh-level RPZ protection\u003c\/strong\u003e: Reduced Pressure Zone design prevents both back-siphonage and backpressure contamination, ideal for critical water safety applications. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1s0j94d\" data-start=\"417\" data-end=\"583\"\u003e\n\u003cstrong data-start=\"419\" data-end=\"447\"\u003eCompact wye-pattern body\u003c\/strong\u003e: Short lay length makes it easier to install in confined irrigation boxes and mechanical rooms. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1gw9qj8\" data-start=\"584\" data-end=\"762\"\u003e\n\u003cstrong data-start=\"586\" data-end=\"619\"\u003eLead-free bronze construction\u003c\/strong\u003e: Durable, corrosion-resistant body built for long service life in outdoor and commercial environments. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"fftoyh\" data-start=\"763\" data-end=\"932\"\u003e\n\u003cstrong data-start=\"765\" data-end=\"795\"\u003eService-friendly internals\u003c\/strong\u003e: Separate access to check valves and relief components reduces maintenance time and labor costs. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"qqpjnq\" data-start=\"933\" data-end=\"1120\"\u003e\n\u003cstrong data-start=\"935\" data-end=\"965\"\u003eReliable field performance\u003c\/strong\u003e: Designed for irrigation, fire protection tie-ins, and commercial potable water systems requiring code compliance. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1q7w2m7\" data-start=\"1121\" data-end=\"1234\"\u003e\n\u003cstrong data-start=\"1123\" data-end=\"1151\"\u003eInstaller-focused design\u003c\/strong\u003e: FNPT connections and modular assembly simplify installation and future servicing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003e\n\u003cbr\u003eQ\u0026amp;A\u003c\/h5\u003e\n\u003cp data-start=\"0\" data-end=\"275\"\u003e\u003cstrong data-start=\"0\" data-end=\"52\"\u003eQ: What is the Zurn Wilkins 34-975XLFT used for?\u003c\/strong\u003e\u003cbr data-start=\"52\" data-end=\"55\"\u003eA: A 3\/4\" lead-free reduced pressure zone (RPZ) backflow preventer designed to protect potable water systems from high-hazard contamination caused by backpressure or backsiphonage. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"277\" data-end=\"495\"\u003e\u003cstrong data-start=\"277\" data-end=\"326\"\u003eQ: Is it approved for drinking water systems?\u003c\/strong\u003e\u003cbr data-start=\"326\" data-end=\"329\"\u003eA: Yes. It is lead-free compliant and typically certified to NSF\/ANSI 61 and ASSE 1013 standards for potable water protection. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"497\" data-end=\"711\"\u003e\u003cstrong data-start=\"497\" data-end=\"545\"\u003eQ: What level of protection does it provide?\u003c\/strong\u003e\u003cbr data-start=\"545\" data-end=\"548\"\u003eA: High-hazard protection using a reduced-pressure principle assembly with two check valves and a relief valve that discharges if unsafe pressure conditions occur.\u003c\/p\u003e\n\u003cp data-start=\"713\" data-end=\"919\"\u003e\u003cstrong data-start=\"713\" data-end=\"754\"\u003eQ: What does “FT” mean in this model?\u003c\/strong\u003e\u003cbr data-start=\"754\" data-end=\"757\"\u003eA: “FT” typically indicates factory-configured fittings (often test fittings and\/or unions), making installation and field testing easier compared to base models.\u003c\/p\u003e\n\u003cp data-start=\"921\" data-end=\"1159\"\u003e\u003cstrong data-start=\"921\" data-end=\"969\"\u003eQ: What are its materials and build quality?\u003c\/strong\u003e\u003cbr data-start=\"969\" data-end=\"972\"\u003eA: Lead-free bronze body with corrosion-resistant internal components designed for durability in irrigation, commercial, and potable water systems. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"1161\" data-end=\"1330\"\u003e\u003cstrong data-start=\"1161\" data-end=\"1206\"\u003eQ: What are the typical operating limits?\u003c\/strong\u003e\u003cbr data-start=\"1206\" data-end=\"1209\"\u003eA: Commonly rated up to 175 PSI working pressure and around 180°F maximum temperature (varies slightly by configuration).\u003c\/p\u003e\n\u003cp data-start=\"1332\" data-end=\"1506\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\u003cstrong data-start=\"1332\" data-end=\"1365\"\u003eQ: Where is it commonly used?\u003c\/strong\u003e\u003cbr data-start=\"1365\" data-end=\"1368\"\u003eA: Irrigation systems, fire protection lines, and commercial plumbing installations requiring reliable RPZ-level cross-connection control.\u003c\/p\u003e\n\u003ch5\u003e\n\u003cbr\u003eMaintenance Tips\u003c\/h5\u003e\n\u003cdiv class=\"qMYqUG_convSearchResultHighlightRoot\"\u003e\n\u003cdiv class=\"\" data-turn-id-container=\"request-WEB:15d07b9e-85e9-40b7-b286-42d6f6f630d0-16\" 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:15d07b9e-85e9-40b7-b286-42d6f6f630d0-16\" data-turn-id-container=\"request-WEB:15d07b9e-85e9-40b7-b286-42d6f6f630d0-16\" data-testid=\"conversation-turn-32\" 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=\"848dd200-6f21-4283-bb8b-1fa2a5f63d01\" 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\" data-turn-start-message=\"true\" 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=\"81\" data-end=\"792\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\n\u003cli data-section-id=\"16fprxa\" data-start=\"81\" data-end=\"177\"\u003eSchedule \u003cstrong data-start=\"92\" data-end=\"120\"\u003eannual certified testing\u003c\/strong\u003e to ensure reliable backflow protection and compliance.\u003c\/li\u003e\n\u003cli data-section-id=\"16b2fn9\" data-start=\"178\" data-end=\"293\"\u003eInspect regularly for \u003cstrong data-start=\"202\" data-end=\"250\"\u003eleaks, relief valve discharge, and corrosion\u003c\/strong\u003e, especially after pressure fluctuations.\u003c\/li\u003e\n\u003cli data-section-id=\"1l889yf\" data-start=\"294\" data-end=\"403\"\u003eCheck and clean \u003cstrong data-start=\"312\" data-end=\"367\"\u003etest cocks, shutoff valves, and internal components\u003c\/strong\u003e to prevent debris-related issues.\u003c\/li\u003e\n\u003cli data-section-id=\"v42rr6\" data-start=\"404\" data-end=\"505\"\u003eFlush the system periodically to reduce \u003cstrong data-start=\"446\" data-end=\"466\"\u003esediment buildup\u003c\/strong\u003e and maintain consistent performance.\u003c\/li\u003e\n\u003cli data-section-id=\"mu2ddg\" data-start=\"506\" data-end=\"614\"\u003eProtect from \u003cstrong data-start=\"521\" data-end=\"544\"\u003efreezing conditions\u003c\/strong\u003e using insulation or seasonal winterization when installed outdoors.\u003c\/li\u003e\n\u003cli data-section-id=\"j3dk06\" data-start=\"615\" data-end=\"711\"\u003eReplace worn parts using \u003cstrong data-start=\"642\" data-end=\"703\"\u003egenuine \u003cspan class=\"hover:entity-accent entity-underline inline cursor-pointer align-baseline\"\u003e\u003cspan class=\"whitespace-normal\"\u003eZurn Wilkins\u003c\/span\u003e\u003c\/span\u003e repair kits\u003c\/strong\u003e only.\u003c\/li\u003e\n\u003cli data-section-id=\"1464has\" data-start=\"712\" data-end=\"792\" data-is-last-node=\"\"\u003eAfter any service, \u003cstrong data-start=\"733\" data-end=\"757\"\u003ere-test the assembly\u003c\/strong\u003e before returning it to active use.\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","brand":"Zurn","offers":[{"title":"Default Title","offer_id":45805587235007,"sku":"34-975XLFT","price":449.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0683\/5703\/0079\/files\/34-975XLFT-2.jpg?v=1782960589","url":"https:\/\/www.mybackyardzone.com\/products\/wilkins-3-4in-rpz-backflow-172917","provider":"Your Outdoor Setup Starts Here","version":"1.0","type":"link"}