Aquarium Bio Sponge Pad Filter Media for Fish Tank,20/30/40PPI Open Cell Coarse Foam Block Foam Pre Filter Sponge (11" Lx 10.25" W x 2" H 40PPI)

Aquarium Bio Sponge Pad Filter Media for Fish Tank,20/30/40PPI Open Cell Coarse Foam Block Foam Pre Filter Sponge (23" Lx 12.5" W x 2" H 20PPI)

Aquarium Bio Sponge Pad Filter Media for Fish Tank,20/30/40PPI Open Cell Coarse Foam Block Foam Pre Filter Sponge (23" Lx 12.5" W x 2" H 30PPI)

Aquarium Bio Sponge Pad Filter Media for Fish Tank,20/30/40PPI Open Cell Coarse Foam Block Foam Pre Filter Sponge (23" Lx 12.5" W x 2" H 40PPI)

Aquarium Filter Bio Sponge Pad, Foam Sponges Filter Media, Cut fit it Filter Accessories for Fish Tanks and Ponds (18"x18"x0.8" (20PPI) 1 Pack)

Aquarium Filter Bio Sponge Pad, Foam Sponges Filter Media, Cut fit it Filter Accessories for Fish Tanks and Ponds (18"x18"x0.8" (20PPI) 2 Pack)

Aquarium Filter Bio Sponge Pad, Foam Sponges Filter Media, Cut fit it Filter Accessories for Fish Tanks and Ponds (18"x18"x0.8" (35PPI) 1 Pack)

Aquarium Filter Bio Sponge Pad, Foam Sponges Filter Media, Cut fit it Filter Accessories for Fish Tanks and Ponds (18"x18"x0.8" (35PPI) 2 Pack)