Poly-Flo Filter Media Rolls or By-The-Foot Options Netting Size_ 7' x 9' Thermo-Pond is a floating pond

Thermo-Pond is a floating pond deicer that maintains a hole in the pond ice to help the proper gas exchange take place on iced-over ponds and helps to protect fish from toxic gas buildup

Heavy-duty swing-style check valve flapper

5" Long includes Intake Strainer x 6

12-1/2" across bottom

Improved point load strength and slide lock connections

Poly-Flo Filter Media Rolls or By-The-Foot Options Netting Size_ 7' x 9' Thermo-Pond is a floating pondPoly Flo's most popular biological filtration media. It is available in 1" 1 1 4", and 2" thicknesses. The 2" material is used exclusively in virtually all US manufactured pond skimmers and waterfall units. The open character of this filter media allows for high volumes of water to pass through without cogging while providing optimal surface area to facilitate bacterial colonization. Color Density Thickness More Surface Area White High 1" 25 200