The Penn Plax Polyfiber Plus Filter Media Pad is an adaptable filtration solution for ALL filter types. Just cut it to fit your needs! This thick pad is made of dense material that traps both fine and coarse material and debris particles, resulting in crystal-clear water. Its advanced filtering technology improves the water quality of your aquarium or pond.
Directions: Rinse thoroughly with cold water before placing in filter. For best results, replace every 4-6 weeks.