Profile: United Filters is a manufacturer, supplier and exporter of air filtration systems and related accessories. We offer a wide range of air filters, HEPA filters, pre-fine filters, demisters pads & substitute filters and air filtration systems. Our HDPE range of pre filters are used in HVAC systems & air handling units. These filters are basically used as pre filters to higher efficiency filter. This filter come in standard sizes with panel or flanged housing. Media is constructed from several layers of high density polyethylene mesh, crimped to form deep folds, ensuring maximum filtration area relative to face area of the filter unit, resulting in low differential air pressure, high dust retention capacity and high flow rate. Corrugation is separated by aluminum spacers to ensure uniform distribution of the air flow through filter media. The filter casing is provided with a flanged section for easy fitment on filter frame. Our dry fabric cleanable filters are used in air handling systems where clean air is critical. This filters are used as a second stage filters to pre filters. These filters are available in standard sizes with panel or flanged housing.