{"product_id":"libra-supply-3-4-expansion-pex-isolation-valve-kit-pressure-relief-valve-rheem-rinai-navien","title":"3\/4 in Expansion PEX Tankless Water Heater Isolation Valve Kit","description":"\u003cp\u003eIn this review of the 3\/4 in Expansion PEX Tankless Water Heater Isolation Valve Kit the bottom line is simple: it is a focused plumbing accessory for installers and homeowners using Expansion PEX A pipe on tankless water heaters with a 3\/4 in MPT outlet. The kit's single biggest advantage is that it provides a compact, easy to install isolation and service solution with a factory-included pressure relief valve and a female thread to Expansion PEX A connection. For anyone who needs a dedicated service valve that is 100% leak tested and NSF\/ANSI 61 compliant, this kit deserves close consideration.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eExpansion PEX A connector:\u003c\/strong\u003e Designed specifically for Expansion PEX A pipe so it forms a secure fit with the slightly larger diameter expansion-style tubing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3\/4 in service valve fit:\u003c\/strong\u003e Attaches to tankless water heaters with a 3\/4 in MPT outlet to provide a compact isolation point for maintenance or replacement.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePressure relief included:\u003c\/strong\u003e The kit ships with a pressure relief valve to address overpressure protection needs during installation and service.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLead-free brass construction:\u003c\/strong\u003e LF clean brass body gives durable corrosion resistance and suitability for potable water installations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEasy installation:\u003c\/strong\u003e Compact design and straightforward female thread to Expansion PEX A connection reduce installation time for pros and competent DIYers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuality assurance:\u003c\/strong\u003e Each kit is 100% leak tested and complies with NSF\/ANSI 61 for drinking water safety.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWho It's For\u003c\/h2\u003e\u003cp\u003eThe kit is best for plumbers, tankless water heater installers, and homeowners who already use or plan to use \u003cstrong\u003eExpansion PEX A\u003c\/strong\u003e tubing on their hot and cold service lines. It is especially useful when a compact isolation valve and service port are required for a 3\/4 in MPT outlet on brands of tankless heaters that accept standard service valves.\u003c\/p\u003e\u003cp\u003eThose who should look elsewhere include anyone working with Crimp PEX B pipe or systems that require crimp-style fittings, because this kit is not compatible with PEX B crimp connectors. Also consider alternative service kits if you need different inlet\/outlet thread sizes or additional accessory fittings.\u003c\/p\u003e\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eFit for Expansion PEX A makes it the correct choice where expansion-style piping is used.\u003c\/li\u003e\n\u003cli\u003eIncludes a pressure relief valve so one less part is needed during installation.\u003c\/li\u003e\n\u003cli\u003eLF clean brass and leak testing provide reassurance for potable water use and durability.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eNot compatible with Crimp PEX B pipe, so it is unusable on crimp-style systems.\u003c\/li\u003e\n\u003cli\u003eSome users reported fitment or leak issues at specific joints, so careful installation and verification are required.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnection type\u003c\/td\u003e\n\u003ctd\u003eFemale thread x Expansion PEX A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutlet size\u003c\/td\u003e\n\u003ctd\u003e3\/4 in MPT service valve\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible pipe\u003c\/td\u003e\n\u003ctd\u003eExpansion PEX A only (not Crimp PEX B)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eLead-free clean brass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePressure relief\u003c\/td\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStandards\u003c\/td\u003e\n\u003ctd\u003eNSF\/ANSI 61 compliant\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTesting\u003c\/td\u003e\n\u003ctd\u003e100% leak tested\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eOur Verdict\u003c\/h2\u003e\u003cp\u003eFor anyone installing or servicing tankless water heaters that use Expansion PEX A piping, this isolation valve kit delivers practical value: a compact, tested brass service valve with a pressure relief included and clear compatibility for 3\/4 in MPT outlets. It is good value when the correct pipe type is used, but it is not a universal solution and should not be used with crimp-style PEX B systems.\u003c\/p\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eIs this kit compatible with crimp PEX?\u003c\/strong\u003e\u003cbr\u003eNo. This kit is the Expansion PEX A connector and will not work with Crimp PEX B fittings.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the kit include a pressure relief valve?\u003c\/strong\u003e\u003cbr\u003eYes, a pressure relief valve is included with the isolation kit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan it be used on any tankless heater?\u003c\/strong\u003e\u003cbr\u003eIt fits tankless water heaters that have a 3\/4 in MPT outlet; confirm your heater outlet size and piping type before purchase.\u003c\/p\u003e","brand":"Libra Supply","offers":[{"title":"Default Title","offer_id":46774993780955,"sku":"B07WZX4VZS","price":74.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/61T6cdak2vL._AC_SL1500.jpg?v=1747588046","url":"https:\/\/gearmusthave.com\/products\/libra-supply-3-4-expansion-pex-isolation-valve-kit-pressure-relief-valve-rheem-rinai-navien","provider":"GearMustHave","version":"1.0","type":"link"}