6 Yards of 1" Coarse Filter Material
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1" Coarse Filter Material or PFM4 is a coarse filter material that has a high surface area for mechanical as well as biological filtration.
The coarse design allows for high flows of water and yet a large surface area is available due to the honey-combed design of the material.
Can be washed and reused over and over!
- Thickness 1"
- Width 28"
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