Designed to exhaust excessive heat from polythene clad greenhouses. Capable of exhausting 4,600m³/hr (2,700cfm) of air. Simply cut out a 30-35cm hole in your polytunnel cover, insert the fan from the inside in a rotating motion, and clip it onto the support bars. Leaves a watertight seal, even in extreme weather conditions. Usually operated via a temperature switch.
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NP Structures LTD t/a Northern Polytunnels
T: 01282 873120
F: 01282 871733