This Fluval 105/205 Canister Filter Monthly Maintenance Kit Package provides enough media for three monthly changes. Includes:
Fluval recommends you replace your Quick-Clear Water Polishing Pad & Carbon every month. They also recommend you clean and lubricate the Motor Head Gasket. This maintenance package will last you three months. It has THREE of the Water Polishing Pads, THREE of the Carbon and enough Lube for three months.
Fluval's Monthly Maintenance Instructions:Be sure to unplug your filter before cleaning.Along with the Water Polishing Pad and Carbon, you should replace any Ammonia and Zeo-Carb media you are using. Check and clean the Impeller. Check and clean the Bio-Foam. Rinse the BioMax with aquarium water. Clean and lubricate the Motor Head Gasket and impeller cover.
Further reading: