Flexible pipes being parts of sink plumbing installations; Sustainable onsite water recycling and wastewater treatment systems; Waste water purification units; Filters, heaters and pumps sold in combination for use in swimming pools; Water filtration and purification units and replacement cartridges and filters therefor; Waste water purification apparatus, installations and tanks; Water treatment equipment, namely, water filtration units and reverse osmosis units; Water treatment equipment, namely, water filtration units; Purification installations for sewage; Plumbing fitting, namely, vacuum release safety valve for flow shutoff in pools and spas; Water purification units; Swimming pool water cleaning and filtering units; Swimming pool skimmer flow diverting weir for increasing the amount of debris drawn into the skimmer