Bioforce Replacement Sponge Filter Foam Set Fit Hozelock 1100, 2200, 4500, 9000
These filter sponge set are not Hozelock Originals, however they are manufactured to equal quality at a fraction of the price. Bioforce 18000 - 2 Sets of Bioforce 9000 Foams. Bioforce 500 - 145mm High x 135mm Wide - Centre Hole 65mm.