This item was previously listed as model number: BB0500

• With all of the surface area but 25% less weight than lava rock and half the weight of gravel, expanded clay Bio-Rocks are the more stable, less abrasive alternative to heavyweight bio-media
• Use 1 box of 0.5 cubic feet of Bio-Rocks per Media Bag

Boxed Weight	28
Warranty	5-year

WARNING: This product can expose you to chemicals including Silicone Dioxide that is known to the State of California to cause Cancer. For more information go to www.p65warnings.ca.gov