LTWHOME Pre-Filter Sponge Roll Fit for South Ocean Five AOF10112 Aquarium Filter, 2.75 by 5.9-Inch (Pack of 12) Simply cut holes in the

Simply cut holes in the desired position with scissors to fit most filter boxes

Custom designed and manufactured for the All Pond Solutions CUP-359 all-in-one small pond filter system

Packing include: 6pcs filter sponge

Compatible with Eheim Classic 2213 / 250 filtration systems

LTWHOME Pre-Filter Sponge Roll Fit for South Ocean Five AOF10112 Aquarium Filter, 2.75 by 5.9-Inch (Pack of 12) Simply cut holes in thePacking include: 12pcs filter sponge. Size: 15 x 7cm 5. 9" x 2. 75"(H*D), 3. 5cm 1. 37"(Inner Hole Dia) . Provides efficient water flow with less clogging for long lasting filtration. Enhances biological filtration. Change every 3 4 weeks.