|Marineland's Penguin Powerhead|
300 GPH. Multi-use versatility...ideal for undergravel filters, water circulation, custom applications, saltwater safe. Adjustable aeration for maximum efficacy. Penquin Power Heads deliver constant flow with fully adjustable aeration and increased surface agitation.....and they remain silent at all times. The custom air valve regulates air flow, the air filter eliminates noise and dust, and the intake strainer keeps debris from fouling the impeller.