Bubble Magus SP4.0 Replacement Impeller Damsels & Chromis The integrated stainless spring check

The integrated stainless spring check valve helps protect the regulator and solenoid from water backsiphoning when the CO2 supply is switched off

Low-profile construction provides a cleaner alternative to bulky internal overflow towers

Dual smoke-coloured U-tubes provide high-capacity siphon flow

A dazzling and uniquely hued beauty

Bubble Magus SP4.0 Replacement Impeller Damsels & Chromis The integrated stainless spring checkBubble Magus SP4. 0 Replacement Impeller Bubble Magus SP4. 0 Replacement Impeller is a replacement needle wheel impeller for the SP4. 0 pump used with the Bubble Magus Curve 9 Extreme Protein Skimmer. SP4. 0 Needle Wheel Impeller Compatibility Replacement needle wheel impeller for the Bubble Magus SP4. 0 pump. Compatible with the Bubble Magus Curve 9 Extreme Protein Skimmer. Helps restore pump rotation, air draw, and dense bubble production. Pump body