Aerators for faucets; Air cleaning units containing an air filter, ultraviolet lights and a photocatalytic filter; Aquarium filtration apparatus; Baby bottle sterilizers; Dish sterilizers; Domestic water filtering apparatus; Drinking water filters; Faucet filters; Handheld shower heads; Hot tub filters; Plumbing supplies, namely, sink strainers; Purification installations for sewage; Strainers for plumbing drains; Strainers for water lines; Swimming pool filters; Tap-water purifying apparatus; Waste water purification apparatus, installations and tanks; Water filtration and purification units and replacement cartridges and filters therefor; Water purification, sedimentation and filtration apparatus for clarification, thickening and filtration of water, waste water and industrial water