Pleatco PFAB100-M Antimicrobial Replacement Pool and Spa Filter fits the Pentair / Pac Fab Mytilus B 100 GPM MA-100/160, Mitlus FMY 100, Mytilus 100 GPM MY 100, Mitra 100 GPM MA-100-160 and Wet Institute Modufilter M-330 (3 required). Pleatco Pool and Spa filters will protect your investment engineered to outperform the competition and exceed your expectations. Featuring high durability filter fabric that maintains strength even when loaded with sediment, a tighter porosity and denser weave to capture more contaminants in less time, and a high strength, high flow core designed to support the filter while providing industry leading flow rates. Pleatco Pool and Spa filters will clean your water faster and more efficiently with less wear and tear on your pump. Order now!