{"product_id":"whk-3-4-ght-hose-bib-vacuum-breaker-6-pack-solid-brass-self-draining-backflow-preventer","title":"WHK 3\/4\" GHT Hose Bib Vacuum Breaker 6-Pack — Solid Brass, Self-Draining Backflow Preventer","description":"\u003cp\u003e\u003cstrong\u003eWHK 3\/4\" GHT Hose Bib Backflow Preventer Vacuum Breaker is a heavy-duty brass device that prevents contaminated water from siphoning back into potable lines and self-drains to reduce freeze risk.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis compact vacuum breaker installs on standard 3\/4-inch hose threads to protect outdoor faucets, RV water inlets, sillcocks and garden hose connections. Made from solid brass with corrosion-resistant finishes, it meets ASSE 1011 \/ CSA B64.2 and ANSI\/NSF 61-9 standards for backflow devices. Each kit includes six vacuum breakers, extra washers and thread tape so you can outfit multiple fixtures right away.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this vacuum breaker stop backflow and siphoning?\u003c\/h3\u003e\n\u003cp\u003eThe unit uses a spring-loaded internal valve that closes when backflow or negative pressure is detected, stopping non-potable water from being drawn back into the supply. When normal forward flow resumes, the valve reopens automatically. Its self-draining design also prevents standing water in the fitting.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSpring-operated check valve blocks reverse flow instantly\u003c\/li\u003e\n  \u003cli\u003eSelf-draining port expels trapped water when faucet is off\u003c\/li\u003e\n  \u003cli\u003eBreak-off screw option for permanent tamper-resistant installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this fit my hose, faucet, or RV connection?\u003c\/h3\u003e\n\u003cp\u003eThe WHK vacuum breaker has a 3\/4-inch female hose-thread inlet and a 3\/4-inch male hose-thread outlet, matching the common garden hose standard. It connects directly to hose bibs, sillcocks, wall faucets, most hose end valves and RV water lines without adapters.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e3\/4\" GHT inlet and outlet for standard garden hoses\u003c\/li\u003e\n  \u003cli\u003eCompatible with sillcocks, wall faucets, RV connections and hose ends\u003c\/li\u003e\n  \u003cli\u003eCompact profile fits tight outdoor faucet locations\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat are the durability and performance specifications?\u003c\/h3\u003e\n\u003cp\u003eConstructed from 100% solid heavy-duty brass, the device resists corrosion and handles typical outdoor conditions. It's rated for up to 125 psi working pressure and temperatures up to 180°F (82°C), suitable for residential and many commercial applications.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSolid brass body for long-term durability and temperature stability\u003c\/li\u003e\n  \u003cli\u003eMaximum working pressure: 125 psi; maximum temperature: 180°F \/ 82°C\u003c\/li\u003e\n  \u003cli\u003eManufactured to meet ASSE 1011\/CSA B64.2 and ANSI\/NSF 61-9 standards\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat comes in the package and how is it installed?\u003c\/h3\u003e\n\u003cp\u003eThe package supplies six vacuum breakers with six extra washers and one roll of PTFE thread tape, so you can install multiple units quickly. Installation is straightforward: hand-tighten to the faucet or hose thread, add thread tape for a leak-free seal, and optionally break off the tamper screw for permanent attachment.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eIncludes: 6 vacuum breakers, 6 additional washers, 1 roll of tape\u003c\/li\u003e\n  \u003cli\u003eHand-tighten to 3\/4\" GHT, use tape for improved sealing\u003c\/li\u003e\n  \u003cli\u003eOptional break-off screw converts to permanent, tamper-resistant install\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? Homeowners, landlords, RV owners, property managers and light-commercial operators who want a reliable, code-friendly way to protect potable water supplies from outdoor hoses and seasonal connections. If you need a durable, easy-to-install backflow prevention solution that fits standard 3\/4\" garden hose threads and comes ready in a multi-pack, the WHK vacuum breaker is designed for those needs without specialized tools or fittings.\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: Can I use this on an RV water inlet?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The 3\/4\" GHT threads fit most RV water lines and outdoor hose connections.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does it require tools to install?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No special tools are needed; hand-tighten and use the included tape for a secure seal.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"WHK","offers":[{"title":"Default Title","offer_id":56831587320148,"sku":"B0BG2LLFFS","price":50.69,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1063\/2652\/4244\/files\/whk-front-view-hose-backflow-preventer.jpg?v=1787017071","url":"https:\/\/gardenluxe.co.uk\/products\/whk-3-4-ght-hose-bib-vacuum-breaker-6-pack-solid-brass-self-draining-backflow-preventer","provider":"Gardenluxe Uk","version":"1.0","type":"link"}