The Fluval A20065 is a replacement ceramic impeller shaft assembly designed specifically for Fluval 304 and 404 canister filters. It is used strictly in models equipped with older, curved-blade impellers.

• Part Number: A20065
• Compatibility: Fits Fluval 304 and 404 external filters
• Impeller Type: Strictly for impellers with curved fan blades (not straight)
• Material: Ceramic, which prevents corrosion in both freshwater and marine aquariums
• Purpose: Acts as the center spindle on which the motor’s impeller spins; replacing it fixes noise issues or a stuck impeller.