{"product_id":"flair-it-pexlock-1-2-in-pex-x-1-2-in-d-mpt-plastic-three-way-bypass-valve","title":"Flair-It PEXLock 1\/2 in. PEX X 1\/2 in. D MPT Plastic Three Way Bypass Valve","description":"\u003cdiv\u003e\n\u003cp\u003eThe Flair-It PEXLock 1\/2 in. PEX x 1\/2 in. D MPT Plastic Three-Way Bypass Valve is a purpose-built tool for flexible, maintenance-friendly plumbing. Designed to integrate with PEX piping, this compact valve gives you immediate control to divert, bypass, or isolate sections of a water line without large-scale disassembly.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eThree-way design\u003c\/strong\u003e — two 1\/2 in PEX connections and a 1\/2 in MPT (male pipe thread) port create a versatile bypass configuration. Route water between lines or connect a temporary flow path for service work.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eDurable plastic construction\u003c\/strong\u003e — lightweight and corrosion-resistant, providing reliable performance in standard residential water systems.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePressure rating\u003c\/strong\u003e — built to handle systems up to 100 psi, making it suitable for most home plumbing applications where a bypass is needed.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePexLock ecosystem compatibility\u003c\/strong\u003e — part of the Flair-It family, designed to work seamlessly with Flair-It PEXLock fittings for a cohesive, leak-resistant network.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eFlexible connection options\u003c\/strong\u003e — with two PEX ends and a 1\/2 in MPT port, you can easily integrate this valve into existing lines and fixtures without extensive modification.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003ePractical use cases\u003c\/p\u003e \u003cul\u003e \u003cli\u003eMaintenance and service: bypass a fixture or loop to repair or replace components without draining the entire system.\u003c\/li\u003e \u003cli\u003eSystem testing and flushing: redirect flow to isolate sections for diagnostic checks or purging air and debris.\u003c\/li\u003e \u003cli\u003eSeasonal or temporary rerouting: set up a temporary path around a valve, pump, or heater for convenient seasonal needs.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWho benefits most\u003c\/p\u003e \u003cul\u003e \u003cli\u003eHomeowners working on PEX-based plumbing projects who need a reliable three-way bypass option.\u003c\/li\u003e \u003cli\u003ePlumbers and technicians seeking a durable, easy-to-install valve that integrates with standard PEX and MPT connections.\u003c\/li\u003e \u003cli\u003eProperty managers maintaining multi-unit buildings with ongoing service requirements and space constraints.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eTips for installation and performance\u003c\/p\u003e \u003cul\u003e \u003cli\u003eVerify connection sizes: ensure 1\/2 in PEX on the two PEX ends and a compatible 1\/2 in female-threaded connection on the MPT port.\u003c\/li\u003e \u003cli\u003eWhen assembling threaded connections, follow local code guidance for seals and torque to prevent leaks.\u003c\/li\u003e \u003cli\u003eAfter installation, perform a pressure test to confirm seals around both PEX and MPT interfaces before putting the system back into service.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eEnhance your PEX network with the Flair-It PEXLock three-way bypass valve—an intentional, dependable solution that brings measurable convenience to routine maintenance, testing, and configuration changes in any 1\/2 in PEX system.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Flair-It","offers":[{"title":"Default Title","offer_id":52191906857234,"sku":"4807582","price":12.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0928\/1024\/8466\/files\/4807582_A.eps_High.jpg?v=1775942498","url":"https:\/\/nationalhardwaregroup.com\/products\/flair-it-pexlock-1-2-in-pex-x-1-2-in-d-mpt-plastic-three-way-bypass-valve","provider":"National Hardware Group","version":"1.0","type":"link"}