4-Pack Fluval-Compatible Foam Filters for 304/305/306/404/405/406 Canisters
Designed for perfect compatibility with Fluval external canister filters models 304 / 305 / 306 and 404 / 405 / 406. Compatible with a range of Fluval canister filters. -For 304/305/306/404/405/406 Canisters.