Faucet aerators; Lawn sprinkler systems comprising pumps, valves and filters; Plumbing fittings, namely, couplers; Plumbing fittings, namely, tub control valves; Shower control fittings, namely, escutcheons; Shower faucet extensions; Thermostatic mixing valves; Water filtering units for domestic, commercial, or industrial use; Water treatment equipment, namely, cartridge filtration units; Water treatment equipment, namely, water filtration units and reverse osmosis units