Supports denitrifying bacteria
Extreme surface area
No need to replace ever

Technical Details

Product Details

Product Dimensions

Package Dimensions
Width : 2.83 inch
Height : 2.36 inch
Length : 4.53 inch

Item Weight: 8.48 ounce (View shipping rates and policies)
Shipping Weight: 1.1 pounds (View shipping rates and policies)

ASIN : B0033Q1U7A