Apparatus for purifying tap water; Bath installations; Central heating radiators; Electric light fixtures; Faucets; Floor heating apparatus; Heat sinks for use in heating apparatus; Heat sinks for use in heating, cooling and ventilating apparatus; Heat-stabilized polypropylene pipes for heating installations; Heating installations; 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; Lighting installations; Plumbing fitting, namely, vacuum release safety valve for flow shutoff in pools and spas; Plumbing fittings, namely, spouts; Plumbing fittings, namely, valves; Pressure regulators for water installations; Underfloor heating apparatus and installations; Washers for water faucets; Water conservation plumbing fixtures, namely, faucets, aerators, showerheads and water saving toilets