Dwyer A-VPX-CKIT - Vane Hood Kit
Kit includes a round 7.2" (183mm) diameter hood and a rectangular 10.9 x 8.9" (277 x 226mm) hood. These cones convert a Thermo-Anemometer into an air volume flow balancing tool for use with small grilles and diffusers. For use with the Dwyer 473B-1.