This Replacement filter cartridge has technical specifications like Unicel # C-4360, Pleatco # PIC60, Filbur # FC-0179 and OEM # 163736 and is capable of handling the top load of 60 square foot. This 23 ¾ inch long and 4 ¼ inch wide filter cartridge is best suitable for Icon Spa, Image Spas. With its semi circular handle on its top and 2 inch hole at bottom provide you the complete protection from sand and germs in you spas. It is best quality filter cartridge made of high grade of materials.