NCI

Water distribution systems comprising non-metal tubing and tubing couplings, namely, fittings, manifolds, and valves for joining and terminating the tubing, and insulation tools therefor, sold as a unit; water distribution systems comprising composite tubing consisting primarily of non-metal tubing and tubing couplings, namely, fittings, manifolds, and valves for joining and terminating the tubing, and installation tools therefor, sold as a unit