Kockney Koi Mega Box Fish Filter Sponge Foam Set Replacement 1,2,3,4 Pond Media
Cheaper alternative to official Kockney Koi foams. Note: These are not official Kockney Koi products. Set 1: Fits filter size 10" x 16" – includes 2 x different grade foams and 1 x fine polishing foam (white wadding).