Hardline Compression Fitting

The best hardline fitting ever made, period. The patent-pending Optimus gasket design is exponentially stronger than any o-ring design ever made. Our 1/8" (3.2mm) thick gasket provides huge surface area to clamp the hard tubing. With ultra-precision machining, extreme corrosion resistant Pro-XE nickel, plasticizer-free o-rings and super clean looks, Optimus fittings are so good we back them with a 10 year warranty. SIZING: 1/2" MODEL: Only for 1/2" tubing, including 1/2" pipe (copper, carbon fiber, etc.) METRIC MODELS: Designed for 12mm and 14mm tubing ORDERING: 6 PACK: Comes in retail packaging with an 8mm allen wrench SINGLES ABOVE 6: Fittings arrive in pro trays, so no more ripping open hundreds of tiny plastic bags.