Upgrade your existing Berlin protein skimmer to the latest Turbo model. This upgrade kit includes turbo pump and conversion parts. The conversion is easy and can be accomplished in less than 5 minutes. The powerful Berlin Turbo Pump enables all models (Classic, Hang-On and XL) of the Berlin Skimmer to be operated as Berlin Turbo’s with the same pump. The motor driven style of air infusion through the pump significantly increases the quantity of air bubbles in comparison to venturi systems. The new design of the 12 blade TurboJet impeller has created an air infusion system that answers the needs for an even more efficient skimmer.