AquaDyne Heavy Duty RHINO I Bottom Drains Size:4" Bottom Drain These pegged plastic balls are

These pegged plastic balls are mainly used as biological media in ponds

For use with 2

and contains all the bacteria needed to digest pond wastes

Phosphorus - Min

AquaDyne Heavy Duty RHINO I Bottom Drains Size:4" Bottom Drain These pegged plastic balls areThe Rhino I Heavy Duty Bottom Drain is a must have item in your pond. With thousands of trouble free installs since 2003, from small home ponds to major commercial fish handling tanks to hydroponic field beds, the Rhino I is a very durable product that weighs in at over 4 pounds. All Rhino drains are made from Schedule 80 PVC and are thermal welded by hand to assure top quality dependable welds. All Rhino drains can be installed with extreme