{"product_id":"mrcool-pre-charged-line-set-for-2nd-gen-systems-r-454b-diy-installation-nv35-3834-o","title":"MRCOOL Pre-Charged Line Set for 2nd Gen Systems (R-454B | DIY Installation) – NV35-3834-O","description":"\u003cp\u003eUpgrade your MRCOOL Universal 2nd Gen, HyperHeat 2nd Gen, or VersaPro 2nd Gen central ducted heat pump and cased A-Coil system with the MRCOOL  No-Vac  Pre-Charged Line Set. Engineered for R-454B refrigerant, this innovative, factory pre-charged line set ensures a seamless, stress-free installation—no vacuuming, no refrigerant charging, and no special tools required.\u003c\/p\u003e\n\u003cp\u003eDesigned to pair perfectly with MRCOOL’s 2nd Gen Universal Series Heat Pump and Pre-Charged Cased A-Coil, this No-Vac line set delivers unmatched efficiency, safety, and convenience for both professional installers and DIY homeowners.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eKey Features \u0026amp; Benefits\u003cbr\u003e✔ Compatible with 2nd Gen Systems: Works with MRCOOL Universal 2nd Gen Heat Pumps, Hyper Heat 2nd Gen, VersaPro 2nd Gen, and Pre-Charged Cased A-Coils.\u003cbr\u003e✔ Pre-Charged with R-454B Refrigerant: Factory-sealed and ready to install—no need for charging or vacuum pumps.\u003cbr\u003e✔ No-Vac Quick Connect Technology: Leak-proof, pre-sealed fittings for a secure, tool-free connection every time.\u003cbr\u003e✔ Available in Multiple Lengths: 15′, 25′, 35′, and 50′ options provide flexibility for any setup.\u003cbr\u003e✔ DIY Extendable: Use MRCOOL DIY Couplers to link line sets and achieve custom lengths without compromising performance.\u003cbr\u003e✔ 3\/8″ Liquid Line \u0026amp; 3\/4″ Suction Line: Optimized for superior refrigerant flow and system efficiency.\u003cbr\u003e✔ Durable, Weather-Resistant Construction: Built with high-quality, corrosion-resistant copper for long-term durability.\u003cbr\u003e✔ Energy Efficient \u0026amp; Eco-Friendly: Uses R-454B, a low-GWP refrigerant compliant with EPA standards.\u003c\/p\u003e","brand":"MR COOL","offers":[{"title":"Default Title","offer_id":50842800849191,"sku":"NV35-3834-O","price":540.09,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/4780\/2407\/files\/NV35-3834-O_1.jpg?v=1766138073","url":"https:\/\/hvacdirect.store\/products\/mrcool-pre-charged-line-set-for-2nd-gen-systems-r-454b-diy-installation-nv35-3834-o","provider":"WholesaleHVACDirect","version":"1.0","type":"link"}