{"product_id":"oxygen-barrier-pex-tubing-1-2-in-x-500-ft-evoh-radiant-heat","title":"Oxygen-Barrier PEX Tubing 1\/2 in x 500 ft - EVOH Radiant Heat","description":"\u003cp\u003eOur review of this Oxygen-Barrier PEX tubing finds it best suited for homeowners and contractors who need a long, reliable coil for radiant floor heating or potable water loops. The single biggest reason to buy is the built-in EVOH oxygen barrier combined with smooth PEX construction, which protects metal components and keeps flows consistent over long runs. The 500 ft red coil and 1\/2 in nominal size make it a practical choice when a long uninterrupted length is needed for slab, staple-up, or snow melting installations.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOxygen barrier:\u003c\/strong\u003e The EVOH layer prevents oxygen ingress to protect boilers and metal fittings, extending system life.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLong continuous coil:\u003c\/strong\u003e At 500 ft total length, the single coil reduces joints and leak points for large loops and slab layouts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReliable dimensions:\u003c\/strong\u003e The 0.625 in outside diameter and 0.475 in inner diameter provide predictable flow and compatibility with standard 1\/2 in PEX fittings.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeat-ready rating:\u003c\/strong\u003e Wide temperature range and pressure ratings maintain performance from very cold to high operating temperatures.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexible handling:\u003c\/strong\u003e A small minimum bending radius and good flexibility make routing around joists and through slabs easier on site.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis tubing is aimed at residential and light commercial installers who need a long run of 1\/2 in PEX with oxygen protection for radiant floor heating, snow melting, or solar water heater circuits. It is also suitable for potable water applications where a red-coded coil is preferred.\u003c\/p\u003e\n\u003cp\u003eThose who need specialized barrier chemistries beyond EVOH or who require thicker pipe walls or a different nominal size should look elsewhere; this coil is optimized for 1\/2 in applications where length, flexibility and oxygen resistance are the priorities.\u003c\/p\u003e\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBuilt-in EVOH oxygen barrier protects metal components and lengthens system service life.\u003c\/li\u003e\n\u003cli\u003eLarge 500 ft coil reduces the number of joints and speeds installation on larger projects.\u003c\/li\u003e\n\u003cli\u003eSmooth inner surface resists scaling and promotes efficient heat transfer for energy savings.\u003c\/li\u003e\n\u003cli\u003eCompatible with common connection methods including crimp, cinch, press and compression fittings.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eOnly offered in 1\/2 in nominal diameter and red color, so projects needing other sizes require a different product.\u003c\/li\u003e\n\u003cli\u003ePressure ratings vary with temperature, so installers must confirm limits for very high temperature systems.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eOxygen-Barrier PEX-B (EVOH layer)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eColor\u003c\/td\u003e\n\u003ctd\u003eRed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal diameter\u003c\/td\u003e\n\u003ctd\u003e1\/2 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTotal length\u003c\/td\u003e\n\u003ctd\u003e500 ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutside diameter\u003c\/td\u003e\n\u003ctd\u003e0.625 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner diameter\u003c\/td\u003e\n\u003ctd\u003e0.475 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTube thickness\u003c\/td\u003e\n\u003ctd\u003e0.07 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe 1\/2 in x 500 ft oxygen-barrier PEX coil is a practical, cost-conscious choice for installers who need long continuous runs with oxygen protection. Its EVOH layer, predictable dimensions and installation compatibility make it a strong value for radiant floor heating and potable water loops where a single long coil reduces joints and labor.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eIs this tubing suitable for radiant floor heating?\u003c\/strong\u003e\u003cbr\u003eYes, the EVOH barrier, temperature range and flexibility make it well suited for radiant floor heating installations.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat connection systems work with this tubing?\u003c\/strong\u003e\u003cbr\u003eIt is compatible with crimp, cinch (clamp), press systems and compression PEX fittings when used with appropriate tools and rings or clamps.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the pressure limits?\u003c\/strong\u003e\u003cbr\u003ePressure capacity depends on temperature: higher pressures at lower temperatures and reduced ratings at elevated temperatures, so follow the specified limits for your application.\u003c\/p\u003e","brand":"Happybuy","offers":[{"title":"Default Title","offer_id":48237024608475,"sku":"B07MKQPJVX","price":110.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/71NQxWW2qXL._AC_SL1500.jpg?v=1770758757","url":"https:\/\/gearmusthave.com\/products\/oxygen-barrier-pex-tubing-1-2-in-x-500-ft-evoh-radiant-heat","provider":"GearMustHave","version":"1.0","type":"link"}