BioCELL Biological Filter Media
BioCELL biological filter media is made of neutrally buoyant, "high-impact" polystyrene that provides a surface area of 198 ft2/ft3 for nitrifying beneficial bacteria. BioCELL media's size and surface configuration provides highly protected surface areas (protecting colonies of nitrifying bacteria) while offering the added benefit of self-cleaning. BioCELL's neutral buoyancy combined with routine backwashing prevents clogging, while maintaining an excellent environment for aerobic nitrifying bacteria.

FilterCLAY's Basic Properties 
#BC-1=BioCELL Bio-Media (1 ft3) 
#BC-1 (In Bulk)=BioCELL Bio-Media (34 ft3)