Hyperfan 6" ventilation fan good used

Good used Hyperfan with variable flow control. This fan works great to control the right amount of air movement. From a gentle flow to serious amount of air movement from a small package. Very energy efficient. Works great with a grow tent or other venting needs.Best in its class – delivering the highest CFM's per watt of any fan in the industryHyper Fan's develop higher static pressures and higher airflows than any other mixed flow fans in the market. Volume (cf): 0.3281They are the answer to a unified environmental solution for your garden ideal for everyday use. excellent materials and excellent craftsmanship ensure long-lasting durability.