Hagen Elite Hush 55 Power Filter. **** PRODUCT MANUAL **** Elite Clip On Power Filter Hush Series by Hagen * Easy to set up & use * Dual filter cartride system * limited lifetime warranty * For crystal clear water * Built in filter insert change indicator Hush 55 (#A-90) For Aquariums up to 55 U.S. Gallons * Filter cartriges included * cUL Approved * 115 V * 60 Hz