Shelco’s High Flow filter cartridges are designed for flow rates up to 500 gallons per minute in a single element configuration. The large, single-cartridge pleated High Flow filters provide up to 100 square feet of surface area for increased dirt-holding capacity (and reduced long-term filter costs). Shelco’s High Flow cartridges are thermally bonded and made from multi-layers of FDA-compliant polypropylene microfiber. The inside-out flow retains contaminant during change-outs and the cartridges are offered in micron ratings from .5 – 100 micron.Shelco’s High Flow Eco Cartridges are designed for residential, commercial and light industrial filtration at an economic price and an exceptional value. These all polypropylene construction filters (a heavy-duty cage replaces the costly stainless steel support basket) offer 98% retention ratings from .5 to 70 microns.