{"product_id":"3-4-rpz-backflow","title":"Zurn Wilkins 34-375 3\/4\" RPZ Reduced Pressure Backflow Assembly - 34-375","description":"\u003ch2\u003eZurn Wilkins 34-375 3\/4\" RPZ Reduced Pressure Backflow Assembly - 34-375\u003c\/h2\u003e\n\u003cp\u003eThe Wilkins 34-375 3\/4\" Reduced Pressure Zone (RPZ) backflow assembly delivers high-hazard protection for potable water systems by preventing backsiphonage and backpressure contamination. Designed for irrigation and commercial applications, it balances reliable performance with low lifecycle maintenance costs.\u003c\/p\u003e\n\u003cp\u003eComplete documentation is available: installation and maintenance instructions, specification sheet, and repair parts lists. The 34-375 is compatible with Wilkins replacement parts and the OEM RK34-375V pressure vessel for fast servicing and part replacement.\u003c\/p\u003e\n\u003ch5\u003eFeatures\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e175 psi maximum working pressure; temperature range 33°F to 180°F for versatile installation.\u003c\/li\u003e\n\u003cli\u003eBronze valve body with EZSwap® removable pressure vessel—durable, corrosion-resistant construction.\u003c\/li\u003e\n\u003cli\u003eFlush fitting tool and removable vessel enable faster flushing, testing, winterization, and service.\u003c\/li\u003e\n\u003cli\u003eIncludes two full-port ball shut-off valves and four ball valve test cocks for straightforward field testing.\u003c\/li\u003e\n\u003cli\u003eThreaded FNPT connections (3\/4\") and in-line serviceable design minimize downtime during repairs.\u003c\/li\u003e\n\u003cli\u003eStandards: ASSE 1013, IAPMO listed, CSA B64.4, and AWWA compliant C511 for code acceptance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003eWhat our Experts Think\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli data-section-id=\"qyr009\" data-start=\"226\" data-end=\"437\"\u003e\n\u003cstrong data-start=\"228\" data-end=\"271\"\u003eTrue RPZ protection (high hazard rated)\u003c\/strong\u003e: Uses a reduced-pressure zone design to prevent both back-siphonage and backpressure contamination in drinking water systems. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"h87mzf\" data-start=\"438\" data-end=\"652\"\u003e\n\u003cstrong data-start=\"440\" data-end=\"470\"\u003eCompact 3\/4\" configuration\u003c\/strong\u003e: Ideal for residential irrigation tie-ins, small commercial lines, and tight installation spaces where full-size assemblies aren’t practical. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1dg46zv\" data-start=\"653\" data-end=\"827\"\u003e\n\u003cstrong data-start=\"655\" data-end=\"692\"\u003eLead-free potable water compliant\u003c\/strong\u003e: Built to meet modern low-lead plumbing requirements for safe use on municipal water supplies. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"c6z1ym\" data-start=\"828\" data-end=\"1040\"\u003e\n\u003cstrong data-start=\"830\" data-end=\"885\"\u003eServiceable modular internals (EZSwap-style design)\u003c\/strong\u003e: Internal pressure vessel and check components can be removed for faster maintenance, flushing, and winterization. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1ne7xvn\" data-start=\"1041\" data-end=\"1228\"\u003e\n\u003cstrong data-start=\"1043\" data-end=\"1079\"\u003eDurable bronze body construction\u003c\/strong\u003e: Engineered for corrosion resistance and long-term reliability in outdoor and buried valve box environments. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"10l37ma\" data-start=\"1229\" data-end=\"1410\"\u003e\n\u003cstrong data-start=\"1231\" data-end=\"1266\"\u003eLow lifecycle maintenance focus\u003c\/strong\u003e: Designed to reduce downtime through replaceable internal assemblies rather than full-unit replacement.\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=\"228\"\u003e\u003cstrong data-start=\"0\" data-end=\"48\"\u003eQ: What is the Zurn Wilkins 34-375 used for?\u003c\/strong\u003e\u003cbr data-start=\"48\" data-end=\"51\"\u003eA: A 3\/4\" lead-free reduced pressure zone (RPZ) backflow preventer designed to protect potable water systems from high-hazard contamination due to backpressure or backsiphonage.\u003c\/p\u003e\n\u003cp data-start=\"230\" data-end=\"438\"\u003e\u003cstrong data-start=\"230\" data-end=\"279\"\u003eQ: Is it approved for drinking water systems?\u003c\/strong\u003e\u003cbr data-start=\"279\" data-end=\"282\"\u003eA: Yes. It is lead-free compliant and 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=\"440\" data-end=\"675\"\u003e\u003cstrong data-start=\"440\" data-end=\"488\"\u003eQ: What level of protection does it provide?\u003c\/strong\u003e\u003cbr data-start=\"488\" data-end=\"491\"\u003eA: High-hazard protection using two check valves and a relief valve that discharges water if unsafe pressure conditions occur, preventing contamination from entering clean water lines.\u003c\/p\u003e\n\u003cp data-start=\"677\" data-end=\"892\"\u003e\u003cstrong data-start=\"677\" data-end=\"723\"\u003eQ: What makes the 34-375 design different?\u003c\/strong\u003e\u003cbr data-start=\"723\" data-end=\"726\"\u003eA: It features an EZSwap® removable pressure vessel for faster service, flushing, and testing without full system disassembly. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"894\" data-end=\"1121\"\u003e\u003cstrong data-start=\"894\" data-end=\"947\"\u003eQ: What are its pressure and temperature ratings?\u003c\/strong\u003e\u003cbr data-start=\"947\" data-end=\"950\"\u003eA: Typically rated up to 175 PSI working pressure and about 180°F maximum operating temperature for residential and irrigation use. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"1123\" data-end=\"1289\"\u003e\u003cstrong data-start=\"1123\" data-end=\"1161\"\u003eQ: What materials is it made from?\u003c\/strong\u003e\u003cbr data-start=\"1161\" data-end=\"1164\"\u003eA: Lead-free bronze body with corrosion-resistant internal components for durability in potable water and irrigation systems.\u003c\/p\u003e\n\u003cp data-start=\"1291\" data-end=\"1457\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\u003cstrong data-start=\"1291\" data-end=\"1329\"\u003eQ: Where is it commonly installed?\u003c\/strong\u003e\u003cbr data-start=\"1329\" data-end=\"1332\"\u003eA: Irrigation systems, commercial water lines, and any high-risk cross-connection application requiring RPZ-level protection.\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-b286-42d6f6f630d0-15\" 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-b286-42d6f6f630d0-15\" data-turn-id-container=\"request-WEB:15d07b9e-85e9-40b7-b286-42d6f6f630d0-15\" data-testid=\"conversation-turn-30\" 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=\"bd88fbbd-9858-4302-b824-7a51de10a38a\" 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=\"77\" data-end=\"858\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\n\u003cli data-section-id=\"smfy3h\" data-start=\"77\" data-end=\"188\"\u003eSchedule \u003cstrong data-start=\"88\" data-end=\"116\"\u003eannual certified testing\u003c\/strong\u003e to ensure proper backflow protection and compliance with local codes.\u003c\/li\u003e\n\u003cli data-section-id=\"1cxct4j\" data-start=\"189\" data-end=\"317\"\u003eInspect regularly for \u003cstrong data-start=\"213\" data-end=\"261\"\u003eleaks, relief valve discharge, and corrosion\u003c\/strong\u003e, especially after pressure fluctuations or shutdowns.\u003c\/li\u003e\n\u003cli data-section-id=\"wypj2c\" data-start=\"318\" data-end=\"425\"\u003eKeep \u003cstrong data-start=\"325\" data-end=\"384\"\u003eshutoff valves, test cocks, and internal passages clean\u003c\/strong\u003e to prevent debris-related malfunction.\u003c\/li\u003e\n\u003cli data-section-id=\"10mkb86\" data-start=\"426\" data-end=\"523\"\u003eFlush the assembly periodically to reduce \u003cstrong data-start=\"470\" data-end=\"490\"\u003esediment buildup\u003c\/strong\u003e and maintain smooth operation.\u003c\/li\u003e\n\u003cli data-section-id=\"mu2ddg\" data-start=\"524\" data-end=\"632\"\u003eProtect from \u003cstrong data-start=\"539\" data-end=\"562\"\u003efreezing conditions\u003c\/strong\u003e using insulation or seasonal winterization when installed outdoors.\u003c\/li\u003e\n\u003cli data-section-id=\"1exnv13\" data-start=\"633\" data-end=\"764\"\u003eReplace worn internal components using \u003cstrong data-start=\"674\" data-end=\"735\"\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 to maintain certification.\u003c\/li\u003e\n\u003cli data-section-id=\"1j88l1u\" data-start=\"765\" data-end=\"858\" data-is-last-node=\"\"\u003eAlways \u003cstrong data-start=\"774\" data-end=\"813\"\u003ere-test after any service or repair\u003c\/strong\u003e before returning the unit to active service.\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":45805587103935,"sku":"34-375","price":485.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0683\/5703\/0079\/files\/34-375-2.jpg?v=1782960458","url":"https:\/\/www.mybackyardzone.com\/products\/3-4-rpz-backflow","provider":"Your Outdoor Setup Starts Here","version":"1.0","type":"link"}