For Aquariums up to 20 gallons (1)

For Aquariums up to 30 gallons (1)

For Aquariums up to 50 gallons (1)

For Aquariums up to 70 gallons (1)

For use with AquaClear 20 A-595 (1)

For use with AquaClear 30 A-600 (1)

For use with AquaClear 50 A-610 (1)

For use with AquaClear 70 A-615 (1)