{"product_id":"100-ft-1-4ft-50-ft-3-8ft-dot-air-line-kit-complete-90-pc-set","title":"100 ft 1\/4ft + 50 ft 3\/8ft DOT Air Line Kit - Complete 90 Pc Set","description":"\u003cp\u003eIn this review the CheeMuii DOT air line kit is evaluated for technicians and DIYers who need a complete pneumatic plumbing solution. The bottom line: this kit's biggest selling point is the comprehensive combination of PA12 DOT tubing and CA360 brass fittings that meet DOT and SAE requirements, which makes it attractive for air suspension, truck, trailer and workshop repairs while offering long service life and high pressure tolerance.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete kit:\u003c\/strong\u003e Includes 100 ft of 1\/4' tubing and 50 ft of 3\/8' tubing plus 90 brass and accessory pieces so most repair jobs can be completed without extra purchases.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDOT compliant fittings:\u003c\/strong\u003e CA360 brass fittings meet D.O.T. FMVSS 571.106 and SAE J1131 guidance, offering corrosion resistance and high-temperature ductility for longevity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-strength tubing:\u003c\/strong\u003e PA12 nylon DOT air lines resist impact and wear, remain flexible for routing, and tolerate wide temperature ranges for reliable field performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePressure capability:\u003c\/strong\u003e 1\/4' tubing rated to operate from vacuum to 500 PSI and 3\/8' tubing to 800 PSI for demanding pneumatic systems while following manufacturer recommendations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInflation valves included:\u003c\/strong\u003e Two brass 1\/4' Schrader valves with protective caps provide a manual inflation point for air spring suspension bags.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHandy accessories:\u003c\/strong\u003e Cutter, Teflon tape, ferrules, bushings and couplers are included so users can assemble and seal lines on first use.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWho It's For\u003c\/h2\u003e\u003cp\u003eThe kit is best for professional mechanics, fleet technicians, and experienced DIYers who work on air suspension, semi truck or trailer air systems and need DOT-compliant tubing and durable brass fittings. The full complement of fittings and long lengths of both 1\/4' and 3\/8' DOT hose mean it covers most common routing and repair scenarios without multiple purchases.\u003c\/p\u003e\u003cp\u003eLess suitable for hobbyists who only need a single coupling or short lengths of hose, or for applications that demand specialized non-DOT materials. Also, those who require completely welded or permanent metal lines rather than push-lock or NPT threaded fittings should consider alternative products.\u003c\/p\u003e\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eComprehensive 90-piece assortment lets users complete complex runs and repairs from one kit.\u003c\/li\u003e\n\u003cli\u003eCA360 brass fittings and PA12 tubing meet DOT and SAE standards for reliability and corrosion resistance.\u003c\/li\u003e\n\u003cli\u003eThe tubing tolerates wide temperature ranges and high working pressures for demanding environments.\u003c\/li\u003e\n\u003cli\u003eIncludes practical tools and accessories such as a cutter and Teflon tape for immediate use.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSome users report mixed leak resistance, so careful sealing and correct assembly are important to avoid sifts.\u003c\/li\u003e\n\u003cli\u003ePush-lock and NPT fittings may require occasional retightening in vibration-heavy installations.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackage contents\u003c\/td\u003e\n\u003ctd\u003e100 ft 1\/4' + 50 ft 3\/8' DOT hose, 90 pcs fittings and accessories\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFitting material\u003c\/td\u003e\n\u003ctd\u003eCA360 brass (DOT compliant)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTubing material\u003c\/td\u003e\n\u003ctd\u003ePA12 nylon DOT air hose\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1\/4' tubing pressure\u003c\/td\u003e\n\u003ctd\u003eVacuum to 500 PSI\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3\/8' tubing pressure\u003c\/td\u003e\n\u003ctd\u003eVacuum to 800 PSI\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature range\u003c\/td\u003e\n\u003ctd\u003e-40F to +248F (-40C to +120C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncluded valves\u003c\/td\u003e\n\u003ctd\u003eTwo brass 1\/4' Schrader valves with caps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eOur Verdict\u003c\/h2\u003e\u003cp\u003eThe CheeMuii 90-piece DOT air line kit is a strong value for professionals and experienced DIYers who need DOT-approved tubing and a broad selection of brass fittings for air suspension, truck and trailer repairs. It combines high-strength PA12 hose and CA360 brass fittings in a ready-to-use package, though installers should watch assembly technique to minimize occasional leak reports.\u003c\/p\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eAre the fittings DOT approved?\u003c\/strong\u003e\u003cbr\u003eYes, the CA360 brass fittings meet D.O.T. FMVSS 571.106 and SAE J1131 requirements.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat pressures can the tubing handle?\u003c\/strong\u003e\u003cbr\u003eThe 1\/4' tubing is rated to 500 PSI and the 3\/8' tubing to 800 PSI; follow manufacturer guidance for pressure and temperature variations.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the kit include tools to cut and seal hose?\u003c\/strong\u003e\u003cbr\u003eYes, the kit includes a cutter and Teflon tape along with ferrules and bushings for assembly.\u003c\/p\u003e","brand":"CheeMuii","offers":[{"title":"Default Title","offer_id":48240031432923,"sku":"B0DZ6B21QV","price":69.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/81_3zFKb71L._AC_SL1500.jpg?v=1771087421","url":"https:\/\/gearmusthave.com\/products\/100-ft-1-4ft-50-ft-3-8ft-dot-air-line-kit-complete-90-pc-set","provider":"GearMustHave","version":"1.0","type":"link"}