The Genuine Hayward Replacement Filter Cartridge is designed to keep your pool water crystal clear. With a square footage of 175 sq. ft., this filter is compatible with Hayward Star Clear Plus C1750 models. Measuring 8-15/16" in diameter and 28-3/16" in length, it features an open top and bottom with a 4" ID. It replaces OEM part number CX1750RE, replaces generic Filbur FC-1294, Unicel C-8417, and Pleatco PA175-M. Built to meet the highest standards, this filter ensures optimal pool performance and water clarity.