The Genuine Dolphin Replacement Ultra-Fine Filter Panels 4-Pack is a set of white filter panels designed specifically for above ground pools. Made by Dolphin, a trusted brand in swimming pool filtration, these ultra-fine filter panels are crafted in the United States. Perfect for maintaining clean and clear pool water, this set includes four filter panels that are essential for keeping your pool in top condition. Ideal for regular pool maintenance, these filter panels are a reliable and efficient solution for keeping your pool sparkling clean.