14-inch Aluminium Roof Turbine Vent

14-inch Aluminium Roof Turbine Vent 14 inches Made of aluminum. Easy installation, reduces energy bills, reduces winter ice build-up Large flashing for easy installation, tested to withstand winds of 110 mph Big Whirly 14" moves up to 37% more air than the 12" All-aluminum rust-free construction Rigid spider type structure, riveted at every connection 21 air-foil curved vanes with rolled vane edges to deflect water. Exclusive vari-pitch base adjusts to 12/12 roof pitch Pick up in Bridgeland