With 13 3/16 inch length and 5 inch width, the respective replacement pool filter cartridge can replace Unicel# C-5615 and Filbur# FC-1415. Moreover, the technical specifications of the product are in compliance with OEM# 42-2782-00. These replacement filter cartridges can help in effective and efficient working of 15 square feet Jacuzzi Brothers CFR-15 (in-line), Competition Pool Products, Cantar and Atlantic Pool Products. The respective product has a top and bottom hole of 2 3/8 inches each.