Atlantic Water Gardens Bio-Rocks Filter Media Size:0.50 Cubic Feet which supports the beneficial bacteria

which supports the beneficial bacteria that complete the biological filtration process and mechanically remove particulate

These Coffee Tables without a bottom shelf come shipped in five pieces

Uses renewable soybean resources and contains no air polluting VOCs

Some are parts of the valve assembly: Valve Handle

Atlantic Water Gardens Bio-Rocks Filter Media Size:0.50 Cubic Feet which supports the beneficial bacteriaAtlantic Water Gardens Bio Rocks filter media are an effective, lightweight biological media. With all 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! Comes with a 5 year warranty. SKU UPC Code Description BB0500 727429001103 Bio Rocks, 0. 50 cubic feet Bulk size ships by truck freight, which requires that you be present