{"product_id":"prime-guard-rv-marine-antifreeze-1-gal-pack-of-6-50-f-protection-non-toxic-glycerin-free-formula","title":"Prime Guard RV \u0026 Marine Antifreeze 1 gal (Pack of 6) -50°F protection, non-toxic glycerin-free formula","description":"\u003cp\u003e\u003cstrong\u003ePrime Guard -50 RV \u0026amp; Marine Antifreeze is a non-toxic, glycerin-free winterizing fluid formulated to protect plumbing and engines down to -50°F while remaining safe for copper, brass and most plastics.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eDesigned for RVs, boats and seasonal systems, this concentrated antifreeze meets industry standards for burst protection in copper tubing and provides broad material compatibility. It’s formulated to avoid glycerin, reducing crystal formation and improving flow through hoses and traps. The product is labeled safe for incidental contact with people, pets and wildlife, and is effective in extreme cold to protect against freeze damage.\u003c\/p\u003e\n\n\u003ch3\u003eHow does Prime Guard protect plumbing and prevent burst pipes?\u003c\/h3\u003e\n\u003cp\u003eThe formula displaces water in lines and depresses the freezing point so liquid remains unfrozen at very low temperatures, reducing pressure build-up that leads to ruptures. It meets established standards for burst protection in copper piping, ensuring consistent performance when used as directed.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eProtects copper tubing to industry burst-protection criteria\u003c\/li\u003e\n  \u003cli\u003eEffective freeze point protection to -50°F when properly flushed and filled\u003c\/li\u003e\n  \u003cli\u003eLow-viscosity formula flows into traps, elbows and small-diameter lines\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIs this antifreeze safe for my RV or boat plumbing materials?\u003c\/h3\u003e\n\u003cp\u003ePrime Guard is compatible with copper, brass and most plastic plumbing components, except acetate-based plastics. Because it’s glycerin-free and non-corrosive to common materials, it helps avoid damage or softening that some other products can cause.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSafe on copper and brass fittings and pipes\u003c\/li\u003e\n  \u003cli\u003eCompatible with PVC, CPVC and most common plastics (not acetate)\u003c\/li\u003e\n  \u003cli\u003eFormulated to reduce risk of material degradation over winter storage\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCan I use this around people, pets and wildlife?\u003c\/h3\u003e\n\u003cp\u003ePrime Guard is labeled for incidental contact and is formulated to be safer than many automotive glycols; however, it is not a food-grade product. Avoid deliberate ingestion and follow standard handling and disposal practices to keep people and animals safe.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eReduced toxicity for incidental exposure scenarios\u003c\/li\u003e\n  \u003cli\u003eClear handling and storage instructions on the label\u003c\/li\u003e\n  \u003cli\u003eDispose according to local regulations after use\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I apply and measure for effective winterization?\u003c\/h3\u003e\n\u003cp\u003eFlush the freshwater system with clean water, then pump or pour antifreeze into the lines until you see it at each fixture. Use the manufacturer’s recommended volume or follow plumbing diagrams to ensure all traps, valves and appliances receive protection.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFlush lines first to remove water and contaminants\u003c\/li\u003e\n  \u003cli\u003eIntroduce antifreeze until it reaches each outlet and trap\u003c\/li\u003e\n  \u003cli\u003eRefer to RV\/boat manuals for system-specific capacities and procedures\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: Prime Guard -50 RV \u0026amp; Marine Antifreeze is intended for RV owners, boaters, marina operators and anyone winterizing seasonal plumbing systems in cold climates. It’s especially useful for those wanting a low-viscosity, glycerin-free product that protects copper and brass components to industry standards while offering safer incidental contact properties. Choose this pack of six one-gallon containers if you winterize multiple vessels, large systems, or if you prefer to keep a supply on hand for repeated seasonal use.\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: Is Prime Guard safe for boat potable water systems?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: It’s safe for incidental contact but not a food-grade product; flush systems thoroughly with potable water before use for drinking supply.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Will this damage PVC or brass fittings?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No—Prime Guard is compatible with brass and most plastics including PVC, but avoid acetate-based plastics.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Prime Guard","offers":[{"title":"Default Title","offer_id":48079882977438,"sku":"B0D3V6GGSG","price":79.98,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/prime-guard-front-gallon-label.jpg?v=1785774231","url":"https:\/\/northtrailauto.ca\/products\/prime-guard-rv-marine-antifreeze-1-gal-pack-of-6-50-f-protection-non-toxic-glycerin-free-formula","provider":"North Trail Auto","version":"1.0","type":"link"}