The 4-Pack CCP420 Filter is a set of cartridge filters designed to fit the Clean & Clear 420 model, with each filter measuring 105 sq.ft. These filters are specifically made to replace the PCC105 model, providing a convenient and efficient solution for maintaining clean pool water. The set includes fittings for easy installation, ensuring a secure and reliable connection for optimal filtration performance. Perfect for keeping your pool or spa water crystal clear and refreshing.