Agricultural irrigation units; Dripper irrigation systems, comprised of valves, filters and regulators; Fitted covers for irrigation sprinkler heads; Irrigation spray nozzles; Irrigation sprinklers; Kitchen sink sprayers; Lawn sprinkler systems comprising pumps, valves and filters; Outdoor cookers for curing food; Valves being parts of lawn sprinkler systems; Water conservation plumbing fixtures, namely, faucets, aerators, showerheads, water saving toilets