Description

Fluval Canister Filter 404/405 Foam Blocks provide mechanical straining of particulate waste within the filter. This prevents waste from prematurely clogging other filter media in the module stack. Its primary purpose is mechanical filtration, but biological activity will also occur within the pore structure.

Features: Effectively strain particulate waste

Includes: 2-pack

Intended For: Hagen's Fluval Canister Filters

Material: Foam

Color: White