{"product_id":"wilkins-brass-bonnett-1-1-4-model-720","title":"Zurn  Wilkins Brass Bonnet 1-1\/4\" for Model 720 (724-20-030F) - 724-20-030F","description":"\u003ch2\u003eZurn  Wilkins Brass Bonnet 1-1\/4\" for Model 720 (724-20-030F) - 724-20-030F\u003c\/h2\u003e\n\u003cp\u003eReplacement brass bonnet (part 724-20-030F) for Wilkins Model 720 and 720A pressure vacuum breaker (PVB) assemblies. Designed for 1-1\/4\" inlet sizes, this bonnet provides a durable, serviceable cover for internal check and air inlet components used in irrigation and landscape systems.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation \u0026amp; documents:\u003c\/strong\u003e Replace bonnet following manufacturer installation and maintenance instructions. Specification sheets, repair parts lists, and installation guides are available on this product page to ensure correct servicing. For repairs, order the appropriate internal kits (check assemblies, seals, springs) separately.\u003c\/p\u003e\n\u003ch5\u003eFeatures\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003eMaterial: solid brass construction for corrosion resistance in irrigation applications.\u003c\/li\u003e\n\u003cli\u003eCompatibility: fits Wilkins Model 720 and 720A PVB assemblies in the 1-1\/4\" size.\u003c\/li\u003e\n\u003cli\u003eFunction: bonnet (cover) for access to internals during repair and maintenance.\u003c\/li\u003e\n\u003cli\u003ePart number: 724-20-030F — OEM equivalent for Wilkins repair parts kits and assemblies.\u003c\/li\u003e\n\u003cli\u003eUse: intended for non-potable residential and commercial irrigation systems requiring backsiphonage protection.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003eWhat our Experts Think\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan\u003eGenuine \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e1-1\/4\" brass bonnet replacement\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e designed for the Zurn Wilkins Model 720 Pressure Vacuum Breaker.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003ePrecision-machined \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003elead-free brass construction\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e ensures durability and long-term corrosion resistance.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eRestores proper sealing and structural integrity to maintain \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003ereliable backflow prevention performance\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\u003eaccurate OEM fitment\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, reducing installation time and compatibility issues.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eIdeal for \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003emaintenance, repair, and refurbishment of existing PVB assemblies\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eHelps extend the service life of the system without requiring full valve replacement.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eDesigned to meet \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eoriginal manufacturer performance standards\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e for safety and compliance.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eA cost-effective solution for \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eprofessional plumbing and irrigation system upkeep\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=\"257f18cf-ee0c-4f1f-89fa-76604c2883fc\" 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=\"257f18cf-ee0c-4f1f-89fa-76604c2883fc\" data-turn-id-container=\"257f18cf-ee0c-4f1f-89fa-76604c2883fc\" data-testid=\"conversation-turn-13\" data-turn=\"user\"\u003e\u003c\/section\u003e\n\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"\" data-turn-id-container=\"request-WEB:b1fe4413-acf0-46d1-93e4-e0f022aad894-6\" 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-e0f022aad894-6\" data-turn-id-container=\"request-WEB:b1fe4413-acf0-46d1-93e4-e0f022aad894-6\" data-testid=\"conversation-turn-14\" 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=\"a21ec311-998a-4da0-8746-01bb0555babb\" 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=\"314\"\u003e\u003cstrong data-start=\"0\" data-end=\"80\"\u003eQ: What is the Zurn Wilkins Brass Bonnet 1-1\/4\" for Model 720 (724-20-030F)?\u003c\/strong\u003e\u003cbr data-start=\"80\" data-end=\"83\"\u003eA: A genuine replacement brass bonnet designed for the Zurn Wilkins Model 720\/720A 1-1\/4\" pressure vacuum breaker (PVB), used to seal and protect internal components of the backflow assembly. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"316\" data-end=\"585\"\u003e\u003cstrong data-start=\"316\" data-end=\"366\"\u003eQ: What does the bonnet do in a Model 720 PVB?\u003c\/strong\u003e\u003cbr data-start=\"366\" data-end=\"369\"\u003eA: It acts as the threaded cover that secures internal parts like the check assembly and air inlet, ensuring proper pressure vacuum breaker operation and leak-free performance. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"587\" data-end=\"821\"\u003e\u003cstrong data-start=\"587\" data-end=\"624\"\u003eQ: Where is the 724-20-030F used?\u003c\/strong\u003e\u003cbr data-start=\"624\" data-end=\"627\"\u003eA: It is used in irrigation and outdoor plumbing systems where Model 720\/720A PVB assemblies are installed for backflow prevention on potable water lines. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"823\" data-end=\"1006\"\u003e\u003cstrong data-start=\"823\" data-end=\"849\"\u003eQ: What is it made of?\u003c\/strong\u003e\u003cbr data-start=\"849\" data-end=\"852\"\u003eA: Solid brass construction for corrosion resistance and long service life in outdoor and irrigation environments. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"1008\" data-end=\"1209\"\u003e\u003cstrong data-start=\"1008\" data-end=\"1058\"\u003eQ: Is this a full repair kit or a single part?\u003c\/strong\u003e\u003cbr data-start=\"1058\" data-end=\"1061\"\u003eA: It is a single replacement bonnet only—internal seals, springs, and check components are sold separately. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"1211\" data-end=\"1384\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\u003cstrong data-start=\"1211\" data-end=\"1253\"\u003eQ: What systems is it compatible with?\u003c\/strong\u003e\u003cbr data-start=\"1253\" data-end=\"1256\"\u003eA: Fits Zurn Wilkins Model 720 and 720A pressure vacuum breakers in the 1-1\/4\" size range. \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 bonnet regularly for leaks, cracks, or corrosion.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eEnsure tight, secure fit to maintain proper sealing and system integrity.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eReplace gasket or sealing components if any signs of wear or seepage appear.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eClean exterior surfaces to prevent buildup of dirt or mineral deposits.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eUse compatible replacement parts only to maintain Model 720 performance standards.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eRe-torque fasteners periodically if required by manufacturer specifications.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Zurn","offers":[{"title":"Default Title","offer_id":45805517013183,"sku":"724-20-030F","price":392.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0683\/5703\/0079\/files\/724-20-030F-1-1.jpg?v=1782956091","url":"https:\/\/www.mybackyardzone.com\/products\/wilkins-brass-bonnett-1-1-4-model-720","provider":"Your Outdoor Setup Starts Here","version":"1.0","type":"link"}