Patented dual-sided dense-floss cartridges contain over 25% more activated carbon than the leading brands. These unique cartridges were designed to ensure even distribution of carbon throughout for more thorough filtration and longer cartridge life.
Fits Aqueon QuietFlow Filter: LED PRO Size 20 & up and E Internal 40 gallon
Ready-to-use cartridge contains high quality activated carbon that keeps water clean, rinse before replacing
Installs in seconds: align cartridge bottom key slot for an accurate fit inside the Filter
For optimal performance, change approximately every 4 to 6 weeks
Do not clean Bioholster when replacing the cartridge as it contains beneficial biological bacteria
Aqueon QuietFlow Filter Cartridge, Large, 12-Pack best price $39.99 new 2019
$68.99 Marineland Emperor 400 Pro Series Bio-wheel Power Filter - Up to 80 gallon, Rite Size "E"
$69.99 Aquatic Experts Filter Socks 200 Micron - 4 Inch Ring by 10.5 Inch Long - 8 Pack Medium - Aquarium Felt Filter Bags, Custom Made in The USA
$15.47 Penn Plax Cascade 300 Submersible Aquarium Filter Cleans Up to 10 Gallon Fish Tank With Physical, Chemical, and Biological Filtration
$32.99 Marineland Penguin Power Aquarium Filter, 20 to 30-Gallon, 150 GPH, Fish Tank
$69.99 Aquatic Experts Filter Socks 200 Micron - 4 Inch Ring by 14 Inch Long – 8 pack- LONG - Premium Aquarium Felt Filter Bags - Custom Made In The USA