Bubble Magus SP1000 Replacement Impeller Bubble Magus SP1000 Replacement Impeller is a replacement needle wheel impeller for the SP1000 pump used with the Bubble Magus Curve 5 Protein Skimmer. SP1000 Needle Wheel Impeller Compatibility Replacement needle wheel impeller for the Bubble Magus SP1000 pump. Compatible with the Bubble Magus Curve 5 Protein Skimmer. Useful when the original impeller is worn, damaged, noisy, or no longer spinning correctly. Pump body is not included. SP1000 Impeller Service Notes Unplug the skimmer before servicing the pump. Remove the pump cover, replace the old impeller, and clean the impeller well before reassembly. Restart the skimmer and confirm that the pump runs smoothly with steady bubble production. What's Included One Bubble Magus SP1000 Replacement Needle Wheel Impeller.