AquaDyne Heavy Duty RHINO Retro Bottom Drains with Air Diffuser Size:Replacement Air Disc for 3" Retrofit Bottom Drain SKU UPC Code Description 40013

SKU UPC Code Description 40013 827807400136 Lake Bacteria Packs

Not compatible with Adirondack or New Hope style lawn chairs

Each cup treats 6

If you already have your skimmer but it is not pre-drilled

Anjon weighted airline tubing can be used with any air pump that takes 3/8" or 5/8" tubing

AquaDyne Heavy Duty RHINO Retro Bottom Drains with Air Diffuser Size:Replacement Air Disc for 3" Retrofit Bottom Drain SKU UPC Code Description 40013AquaDyne Retrofit Bottom Drains with Air Diffuser offer a quality innovation for a stable and rugged over the liner bottom drain for those who do not want to install a drain through a liner or for pre constructed ponds that do not have a bottom drain. This drain is especially useful for pond and aquatic environments that have preexisting liner, concrete, or any other situation that would not allow underground plumbing to be installed. Keeping solid