TracPipe® CC™ (Complete Containment) includes an original BS 7838 TracPipe® with an additional robust outer cover with internal ridges that allow any escaping gas to move freely to ventilated areas at the ends of the pipe.TracPipe® is a stainless steel, semi-rigid (bendable) corrugated gas pipe with a yellow polyethylene cover that is fire and smoke retardant that is an approved system for natural gas and LPG installations generally between the meter and appliance. The pipe may be bent by hand, but must NOT be used where repeated bending occurs after installation. AutoFlare® fittings are used to connect TracPipe® CC™. No welding, soldering or threading is needed.