Charcoal Filter best C290 10 Pack for Basic and Perfect Pet Fountain

best Inline Charcoal Filter is comprised of a 4” blue tube with 1 ½” elbows on each end. Enclosed inside the blue tube is granulated activated charcoal, held in place with small foam plugs. Granular activated charcoal is a form of carbon processed to have small, low-volume pores that increase the surface area available for adsorption or chemical reactions.

For use in: Basic Pet Fountain, Perfect Pet Fountain