The Simplicity DC Protein Skimmer line packs performance, value, and control in a compact footprint. The hybrid cone design features three control points, a controllable pump, and a needle wheel impeller. Available in five different sizes to suit aquariums between 50 and 500+ gallons and covered by a 3-year prorated limited warranty, and unlimited lifetime, US-based support. Exceptional Waste Removal Pulls in more air than expensive competitors producing a dense waste-removing foam. The hybrid cone body helps concentrate the foam as it rises and improves contact time. Easy-to-perform Maintenance The thumbscrew assembly makes taking the skimmer apart simple, and the bayonet locking collection cup is simple to remove and clean. Includes a built-in collection cup drain for those away from their tank for an extended time. Specifications Dimensions: 9.1 in. x 8.3 in. x 21.3 in. (L x W x H) Weight: 8.2 lbs Power Consumption: 11-32W Power Type: 24V DC Power Cord Length: 10 ft Warranty: 3-year manufacturer prorated warranty Skimmer Specifications Light Bioload: up to 320 Gallons Medium Bioload: up to 240 Gallons Heavy Bioload: up to 160 Gallons Recommended Water Height: 7-9 in. Footprint: 9.1 in. x 8.3 in. Height: 19.5 in. Body Shape: Hybrid Cone Body Diameter: 6.3 in. Neck Size: 3.5 in. Collection Cup Capacity: 3-3/4 Cups Collection Cup Style: Bayonet Twist Lock Collection Cup Drain: Included Tuning: Adjust the airflow, bubble size, and the flow rate of water through the skimmer Pump Specifications Air Intake: up to 1020 liters/hour (269 gallons/hour) Flow Rate: up to 1100 liters/hour (291 gallons/hour) Impeller Type: Needle Wheel Control: Adjustable flow rate Additional Features: Feed mode