Pentair R172661 White Lily Basket with Restrictor Assembly Replacement Dynamic IV Series Pool and Spa Filter Lily basket with restrictor assembly replacement Fits Pentair Dynamic series IV pool and spa filter models DFML 25C, 25, 35, 50 Available in white color Measures 20-1/4-inch length by 18-1/4-inch height by 20-1/4-inch width