Since the size above is measured by hand

Added taurine helps support your furry friend’s healthy eyesight and strong heart function

or you prefer to measure your parameters on a more in-depth scale

HEALTHY INGREDIENTS: Created by nutritionists and veterinarians

Double ring design

Marineland Micron Cartridge, Fits Magnum Canister Filters 3 Lbs Guinea Pig Food Since the size above isBrand MarineLand Material Cotton Compatible Devices Marineland Magnum, Marineland HOT Magnum Reusability Disposable Number of Pieces 1 About this item For the Magnum and HOT Magnum canisters Unique filtration 1 Pack For the Magnum and HOT Magnum canisters Unique filtration Foam sleeves and other parts From the manufacturer Micron Cartridge For the Magnum and HOT Magnum canisters Unique filtration 1 Pack