Aquarium Filter PF-L Cartridges 12 Pack for Top Fin Silenstream PF20, PF30, PF40, & PF75
You won't need to change aquarium filter cartridges for an entire year with this best 12 pack of PF-L carbon filter cartridges for Top Fin Silenstream PF20, PF30, PF40, & PF75 power filters. Refreshing a tank can't get more easy or convenient.