Poly-Flo Rainbow BioBlox Filter Media BB1
Approximately one cubic foot of pond filter media.
Includes Media Bag
More than 500 Sq. Ft. of surface area per one cubic foot
Less expensive alternative to other types of filter media.
Can be used in virtually any biological filter.
One Bag of Rainbow BioBlox will fill 3 FB-2 bags or loosely fill BG2234 bags
Weight 12 lbs