Agricultural irrigation units; Electrically-heated garden hoses; Heat pipes to cool heat producing components; Heating systems composed primarily of tubes, pipes and manifolds through which warm or high temperature water circulates; Heating systems composed primarily of tubes, pipes and pre-assembled manifolds through which cold or low temperature water circulates; Heating systems for residential and commercial buildings comprised of biomass burners, boilers, valves, pipes, manifolds, solar panels, control panels, switches and electrical wire, all sold as a unit; Heating systems for residential and commercial buildings comprised of boilers, valves, pipes, manifolds, control panel switches, and electrical wire, all sold as a unit; Heating systems for residential and commercial buildings comprised of boilers, valves, pipes, manifolds, solar panels, control panel, switches and electrical wire, all sold as a unit; Irrigation spray nozzles; Irrigation sprinklers; Misting systems for outdoor cooling; Personal cooling system comprising tubing, a coolant source and temperature controls that may be incorporated into a garment; Pipes being parts of sanitary facilities; Plumbing fittings, namely, drains; Plumbing fittings, namely, fresh water fills for recreational vehicles; Plumbing fittings, namely, spouts; Plumbing fixtures, namely, shower sprayers; Sprinkler heads for irrigation sprinklers; Water treatment apparatus for infusing irrigation water with liquid fertilizer