Review on Pack Eshopps Round Filter Large by Maryland Hess

Great little pre-filter to attach to the inlet pipe end of a filter tee, or even a touch of a rear filter. Helps protect fish and reduce build-up on the main filter media and can also create an additional area for beneficial bacteria to grow. This is large enough to slide over the small cups at the end of the suction tube. Check out the photos and sizes as the seller and Revane didn't think it was important enough to list them. High quality and thick, medium filtration level.