Air-conditioning, air cooling and ventilation apparatus and instruments; Aquarium lights; Filters for air conditioning; Germicidal lamps for purifying air; Hand held shower heads; Lighting fixtures; Manually-operated plumbing valves; Portable electric heaters; Portable showers; Pressure regulators for sanitary installations; Refrigerating appliances and installations; Sanitary installations in the nature of steam rooms; Shower mixing valves; Strainers for plumbing drains; Tap water faucets