LTWHOME AEO19055 Round Large Filter Sponge Fit for Zoo Med's 501 External Filter (Pack of 6) Package include: 8 Fine Green

Package include: 8 Fine Green Foam Filters and 8 Blue Coarse Foam filters

1 Filtration Systems

Foam size:100mm x 100mm x 12 mm

Packing include: 3pcs coarse and 12pcs fine foam filter pads

Activated carbon sponges remove odors and keep water crystal clear

LTWHOME AEO19055 Round Large Filter Sponge Fit for Zoo Med's 501 External Filter (Pack of 6) Package include: 8 Fine GreenPackage include: 6pcs. Size: 3. 94 inches by height,2. 20 inches by diameter; inner hole diameter: 0. 39 inches. This filter pads is custom designed and manufactured for Zoo Med's 501 External Filter. Provides efficient water flow with less clogging for long lasting filtration.