Sicce PSK600 Skimmer Pump .The Italian pump manufacturer Sicce provides a reliable pinwheel skimmer pump with unique star impeller for increased air pull. The new PSK-600 are much more advanced than the previous PSK 2500 pumps. Now with a digital circuit to control start up direction and speed, ultra low noise and huge air draw numbers, this pump is ready to perform with no modifications needed. The skimmers pump produces on average 18scfh of air pull using the provided pinwheel impeller.(Air results will vary depending on aquarium setup) Replacement pump for the following Reef Octopus skimmer models: Diablo 160 This pump can be retrofitted to the following Reef Octopus skimmers: Diablo/Extreme 160 ($20 extra part)* *There is an addition part needed to convert the pump to the skimmer body for some models that must be requested at the time of purchase due to the added cost of the part. Sicce PSK600 Pinwheel Pump Specifications Voltage: 120v/60Hz Wattage: 40w Air draw: 600 L/H (21 SCFH)* GPH: 247* *Measurements are approximate and can vary.