Had my buddy over with his sled in the cave for some rehab. About 9:00 last night my wife comes walking out and catches him holding this in his hands ( LOL ) I had to bail us out so I said " The dog did it "...... this is the heavy " pet " screen stuff, we cut it up and epoxied it in place worked great. Another option was the foam filter from the " wet vac ". I never use it but wanted to save it just incase. Nice filter media , IMO , but might be thick.