{"product_id":"usvehj-repair-kit-for-watts-1-rk-800m4-pressure-vacuum-breaker-12-piece-rebuild-kit-with-seals-springs","title":"usvehj Repair Kit for Watts 1\" RK-800M4 Pressure Vacuum Breaker — 12-Piece Rebuild Kit with Seals \u0026 Springs","description":"\u003cp\u003e\u003cstrong\u003eThe usvehj 0887728 Repair Kit is a complete 12-piece rebuild set designed to restore functionality to 1\" Watts RK-800M4 and 800M4-FR series pressure vacuum breakers without replacing the entire assembly.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eIf a pressure vacuum breaker is leaking, sticking, or failing to vent properly, replacing individual worn components is faster and more economical than installing a new device. The usvehj 0887728 kit supplies the commonly worn parts — hood, bonnet, seals, springs, float and check components — plus lubricant, so you can rebuild a 1\" RK-800M4 series unit and return it to reliable operation.\u003c\/p\u003e\n\n\u003ch3\u003eWhich parts are included and why do they matter?\u003c\/h3\u003e\n\u003cp\u003eThis kit contains the specific components that typically fail first in service: the hood and screws, bonnet and bonnet O-ring, vent spring and vent float, check spring and check disc holder assembly, seat and seat O-ring, and a small tube of lubricant. Replacing these items addresses leaks, sticking valves, and faulty venting.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHood and screws: restore protective cover and secure fit\u003c\/li\u003e\n  \u003cli\u003eBonnet and O-ring: re-establish tight sealing at upper assembly\u003c\/li\u003e\n  \u003cli\u003eVent float and spring: ensure correct atmospheric venting\u003c\/li\u003e\n  \u003cli\u003eCheck spring, disc holder, seat and O-ring: renew backflow prevention surfaces\u003c\/li\u003e\n  \u003cli\u003eLubricant: eases assembly and helps initial seating of moving parts\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow will this kit fix leaks or malfunctioning venting?\u003c\/h3\u003e\n\u003cp\u003eLeaks and venting issues often stem from deteriorated rubber seals, compressed springs, or debris-damaged seats. Installing new O-rings, springs and the float assembly restores the internal geometry and spring tensions that allow the breaker to seal and vent properly.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eNew O-rings replace hardened seals that leak under pressure\u003c\/li\u003e\n  \u003cli\u003eFresh springs restore correct vent and check movement\u003c\/li\u003e\n  \u003cli\u003eNew seat and disc holder ensure proper shutoff against backflow\u003c\/li\u003e\n  \u003cli\u003eIncluded lubricant prevents premature wear during initial cycles\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIs the usvehj 0887728 kit easy to install for a DIYer or pro?\u003c\/h3\u003e\n\u003cp\u003eThe kit is designed for straightforward swap-in replacement with basic hand tools; no specialty machines are required. An installer familiar with small backflow devices can typically complete the rebuild quickly by following the original unit’s assembly sequence and standard safety procedures.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFits 1\" RK-800M4 and 800M4-FR series units — no modification needed\u003c\/li\u003e\n  \u003cli\u003eParts are pre-sized for direct replacement and alignment\u003c\/li\u003e\n  \u003cli\u003eSimple tools like a screwdriver, wrench and cleaning brush are sufficient\u003c\/li\u003e\n  \u003cli\u003eLubricant provided to ease reassembly and seating of rubber parts\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat materials and durability can I expect from this replacement kit?\u003c\/h3\u003e\n\u003cp\u003eComponents are manufactured from rubber, engineered plastics and corrosion-resistant steel, chosen for wear resistance and compatibility with potable water systems. Replacing worn parts with these materials extends service life and reduces the need for whole-unit replacement when only internal components are compromised.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRubber O-rings and seals resist compression set and provide reliable sealing\u003c\/li\u003e\n  \u003cli\u003ePlastic and nylon components reduce corrosion risk compared with some metals\u003c\/li\u003e\n  \u003cli\u003eSteel hardware offers strength and rust resistance in typical plumbing environments\u003c\/li\u003e\n  \u003cli\u003eQuality parts help avoid repeat service calls when installed correctly\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The usvehj 0887728 Repair Kit is aimed at plumbers, irrigation technicians, maintenance staff and knowledgeable DIYers who service 1\" Watts RK-800M4 or 800M4-FR pressure vacuum breakers. It’s ideal when the body of the breaker is sound but internal seals, springs, or the float assembly are worn or damaged — providing a cost-effective, time-saving alternative to full valve replacement.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does this kit fit my Watts RK-800M4 1\" valve?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The usvehj 0887728 kit is made to fit 1\" Watts RK-800M4 and 800M4-FR series pressure vacuum breakers.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Are tools or lubricant included with the kit?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Lubricant is included; basic hand tools like a screwdriver and wrench are required but not provided.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"usvehj","offers":[{"title":"Default Title","offer_id":56820679606612,"sku":"B0C5CWZ9KS","price":73.26,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1063\/2652\/4244\/files\/usvehj-front-packaging-assembly.jpg?v=1786965694","url":"https:\/\/gardenluxe.co.uk\/products\/usvehj-repair-kit-for-watts-1-rk-800m4-pressure-vacuum-breaker-12-piece-rebuild-kit-with-seals-springs","provider":"Gardenluxe Uk","version":"1.0","type":"link"}