Hagen AquaClear 20 Powerheads feature a patented pump with free-floating impeller for long and dependable service, "Venturi" aeration, variable flow control, and an adjustable, pivoting riser stem adapter. The bi-directional flow outlet of the Powerhead 20 enables you to control the current vertically and horizontally. An AquaClear Powerhead is easily fitted to most undergravel systems. It comes equipped with a tapered riser stem adapter which accepts 1/2" to 1 1/8" tubing, a rim clamp to firmly hold it in place atop the riser stem, and an optional suction cup bracket which allows the unit to hang from an aquarium wall instead of the rim. For aquariums 5 to 20 gallons. Pumps fresh or salt water up to 127 GPH.
Adjustable Rim Attachment
Fits most aquarium.
Venturi System with Control Valve
Provides optional aeration.
Optional Suction Cup Attachment
For mounting directly to the glass.
Adjustable Flow Control
Allows for precise regulation.