Large Overflow Filter Box with Intake Round Pre-Filter Foam Sponge 6.9"L x 4"W
Filter Sponge Size This pre-filter with coarse filter sponge is designed for use as internal filter which is adaptable to air stone and powerhead DIY 1" tube. Large Internal Filter with Pre Filter Sponge (Coarse) 6.9"L x O.D. 4" oz.