Peplyn Ha is available in cartridge filters, capsule filters and membrane discs. It utilizes polypropylene filter media and support materials, which balance a high surface area and closely controlled porosity, in a configuration that maximizes the cleaning efficiency of backwashing. Capture of larger particles is predominantly on the surface of the media and by utilizing a robust and rigid construction surface blinding can be significantly reduced by backwashing. By using a graded fibre size and density throughout the media depth, coupled with closely controlled porosity, the loading capacity is maximized and retention of smaller particles is accurately defined and maintained under wide extremes of operating conditions. PEPLYN® HA filter cartridges, capsules and membrane discs are ideally suited to applications with high natural dirt loading or where artificial filter aids (eg. kieselguhr) have been used to provide bright products.