Fits Pressure Pond Filter CPF-250, Goplus Pressure Bio Filter 10000L, Best Choice Products 4000 L
Yellow sponge: 7.875" (L) x 7.875" (W) x 1.125" (H)
Blue sponge: 10" (L) x 10" (W) x 1.375" (H)
Includes: 3 pieces of yellow sponge, 3 pieces of blue sponge