Mag Float Replacement Felt and Pad for Glass Mag-Float 350

The Mag Float Replacement Pad and Felt for Glass can be used with medium glass Mag-Floats to help maintain your aquarium by removing tough and stubborn algae. For use in glass aquariums only Replacement pad and felt for the Mag Float Glass aquariums only Contains 1 pad and 1 felt Specifications:Medium: Aquariums up to 125 gallons (3/8"/10 mm glass)Large: Aquariums up to 350 gallons (5/8"/16 mm glass)