The Cryspool Spa & Pool Filter Cartridge CP-05007 in a 2 pack is a high-quality filter cartridge designed for pools and spas. Made by the brand Cryspool in China, this white and blue cartridge model CP-05007 effectively filters out impurities and debris from the water, ensuring a clean and refreshing swimming experience. With its reliable filtration capabilities, this product is a must-have for maintaining the water clarity and quality of your pool