11 flexible pipes being parts of basin plumbing installations; flexible pipes being parts of bath plumbing installations; flexible pipes being parts of shower plumbing installations; heating panels used for indoor heating purposes; heating/cooling systems composed primarily of tubes, pipes, and pre-assembled manifolds through which cold or low temperature circulates; heating systems composed primarily of tubes, pipes and manifolds through warm or high temperature water circulates; heating systems for residential and commercial buildings, comprised of valves, pipes, manifolds, control panel, switches all sold as a unit; indoor radiant heating systems; plumbing fittings, namely, adapters, caps, couplings, elbows, valves, pipe clamps, tees, reducers and couplers; shower control fittings, namely, escutcheons; snow melting systems, comprising, temperature, moisture, slab and air sensing, mixing valve and boiler activation controls, tubing, manifold fittings and instruction manuals, delivered as a unit; mixing stations comprised of distribution manifolds for mixing hot water as component elements of hydronic heating systems; plumbing fittings, namely, couplings, elbows, tees, adapters, plugs and valves for use in heating, cooling, compressed air, gas and liquid gas installations in residential, commercial and industrial buildings and for maritime installations; indoor radiant heating systems, primarily comprising Barrier PEX tubing, circulator pump, manifolds, heat transfer plates