Bio Sponge Prefilter Media Pad Cut-to-fit Foam 20” x 20” x 1” Birds Its oil-free design and high-torque

Its oil-free design and high-torque performance will provide years of trouble-free operation

powder coated steel

Various O-Rings and seals (See pics) for:

More colors mean more channels

and visible light output

Bio Sponge Prefilter Media Pad Cut-to-fit Foam 20” x 20” x 1” Birds Its oil-free design and high-torqueProduct Details: Size: 50 x 50 x 2. 5cm; Dense shape makes it effective to avoid residue, the filter sponge is the first line of defense in removing dirt and floating debris from your terrarium or aquarium, and the filter can be cut any sizes as you needed. Excellent water permeability makes it avoid blockages and provide the largest adhesion area for bacteria, cultivate the nitrify bacteria for biological filtration. The filter can decompose the