The Extreme XS 350 protein skimmer is powered
by the three high performance Italian Sicce pinwheel pumps. This skimmer
comes equipped with a gate valve for precision adjustment of the
The Sicce PSK1000 pump has an improved star wheel impeller.
They are much more advanced with a digital circuit to control startup
direction and speed, ultra low noise and huge air draw numbers. The
skimmer produces up to 23-28 scfh of air pull each pump using the
provided pinwheel impeller. (Air results will vary depending on aquarium
Each Sicce pump draws less than 60watts of electricity. The
collection cup has a quick release neck for easy removal for cleaning.
It requires 1/2 inch of clearance to remove the cup. The Extreme XS
skimmer uses metric plumbing parts.