The new patent pending AutoSnap fittings are the only CSST fittings that do not require any disassembly or reassembly of the fitting to the TracPipe Counterstrike CSST. This greatly reduces installation difficulty and time as there are no small loose gaskets, O-rings or retainer rings to contend with in a dark and/or cold work place environment! AutoSnap is CSA listed and features a metal to metal cup seal without any exposed stainless steel pipe behind the new fitting. Reduced torque value and reusability all make for an optimum installer friendly fitting.