Filtering units for biological filtering of swimming pool water; Water filtering apparatus; Water filtering units for domestic and commercial swimming pool use; Water filtering units for remediation of contaminated water use; Water filtering units for the production of potable water use; Water purification and filtration apparatus; Water purification, sedimentation and filtration apparatus for clarification, thickening and filtration of water, waste water and industrial water; Water treatment equipment, namely, water filtration units; Swimming pool water cleaning and filtering units
Environmental Control Apparatus