Photo 1 of 16 Count Assembled Large Filter Cartridges Compatible with Tetra Whisper Bio-Bag Filters 20i 40i IQ20/30/45/60 PF20/30/40/60, Large Replacement Filter Cartridges for Whisper Filters & Aquariums

Double tap image to zoom

Photo 1 of 16 Count Assembled Large Filter Cartridges Compatible with Tetra Whisper Bio-Bag Filters 20i 40i IQ20/30/45/60 PF20/30/40/60, Large Replacement Filter Cartridges for Whisper Filters & Aquariums