The Fluval A20136 is a genuine replacement impeller cover designed specifically for Fluval 204 and Fluval 205 external canister filters. It securely holds the impeller and ceramic shaft in place to ensure optimal water flow and works only with straight-blade impellers.

• Part Number: A20136
• Filter Compatibility: Fluval 204 & Fluval 205
• Impeller Type: Straight blade only
• Purpose: Secures the impeller and shaft to maintain proper water flow and minimize filter noise.