Aerating pumps for aquaria; Aquarium pumps; Compressed air pumps; Lawn and garden string trimmer spools; Pond and water garden aeration systems comprising water pumps, air compressors, air blowers and a finned wheel for pressurizing and aerating ponds and aquariums; Downhole oil separators for submersible pumps; Sump pumps; Water pumps for spas, baths, whirlpools, swimming pools, water filtering units; Water treatment equipment, namely, pumps for use in irrigation systems