chlorine compounds for treating swimming pool and spa water; [ chemical preparation for maintaining water temperature in swimming pools and spas; ] chemical preparations for controlling stains, scale and corrosion in swimming pool and spa water; chemical preparation for neutralizing excess chlorine in swimming pool and spa water; defoaming and foam control preparations for swimming pool and spa water; chemical cleaning preparation for swimming pools and spas and associated surfaces that is used in conjunction with muriatic acid; [ antifreeze for treating swimming pool and spa water; ] oxidizing agents for use in removing or reducing organic contaminates and increasing water clarity in swimming pools and spas; swimming pool and spa water clarifying preparations; chemical preparation for controlling the alkalinity of swimming pool and spa waters; chemical preparation for controlling the calcium hardness in swimming pool waters; and chemical preparations for controlling the pH of swimming pool and spa water; chemicals used in the treatment of swimming pool and spa water; kits and kit reagents for testing water in swimming pools, spas and the like, consisting of a test block with appropriate color standards for testing pH and for addition to the water samples during the test procedure

swimming pool and spa tile, chrome and vinyl cleaner; pool cover cleaners and deodorizers as unitary products; and preparations for cleaning swimming pool and spa filters

bactericidal and fungicidal preparations; algaecides; germicides; sanitizing agents; and disinfectants

swimming pool and spa skimming apparatus, and accessories therefor, namely, vacuum heads, and vacuum hoses

thermometers for testing water in swimming pools and spas

brushes for use in swimming pools and spas