Kasco® SureSink™ Self-Weighted Airline Tubing Part:500' Tubing ONLY when buying 1 roll - No Fittings See assembly instructions below

See assembly instructions below

This beneficial bacteria attach to the media within the filter

Pond Force™ Pond Bacteria Coldwater Blocks contains strains of beneficial bacteria that work naturally to clarify water and reduce sludge

A plug is included to prevent the stones from falling out

Kasco® SureSink™ Self-Weighted Airline Tubing Part:500' Tubing ONLY when buying 1 roll - No Fittings See assembly instructions belowKasco SureSink self weighted airline tubing is a durable PVC composite available in diameters of both 3 8" and 5 8". This hose will not crack during cold weather and will remain flexible. 3 8" tubing should only be used in applications where total length is below 300'. SKU Description 773380 3 8" x 100' SureSink Tubing Kit (Includes Tubing and Fittings) 773385 3 8" x 500' BULK SureSink Tubing (No Fittings) 773300 3 8" SureSink Tubing Fitting Kit