Flushometers; Lavatories; Showers; Bath installations; Drainage water treatment tanks; Plumbing fittings, namely, bibbs, cocks, traps, valves; Plumbing fittings, namely, couplers; Plumbing fittings, namely, drains; Plumbing fittings, namely, spouts; Spray heads for showers; Taps being faucets; Vanity top sinks; Water closets; Water filters; Water purification installations