Condition: This filter is new and unused, however, there is a small crack in the top of the filter (see photo). It may not affect performance, but please review pictures closely and purchase accordingly. Priced lower due to this cosmetic defect. The PLEATCO Plus PMA25-M Replacement Cartridge is designed specifically for the Nested System PMA-PROPAK2-M Pool. Made by the trusted brand Pleatco, this filter cartridge is suitable for hot tubs and provides efficient filtration to keep your pool or spa water clean and crystal clear. Easy to install and reliable in performance, this replacement cartridge ensures that your pool or spa continues to run smoothly with a high level of filtration efficiency.