Aquarium COOLING FAN ColdWind 51.5CFM - Chiller for Water Plants Fish Tank Made of Aluminum alloy, with firm structure, non Corrosion. Air Flow (CFM):51.5 Dimensions:15.3" x 5" (39X12.8cm) Recommended up to 40 gallons 70-120cm. Power:AC100~240V , 50-60Hz