Enervex chimney adaptors let you install Enervex chimney fans on factory built, double or triple wall chimneys. Available in most sizes from 5" to 24" flues (special order available on sizes not listed). For use on both solid pack and air cooled chimney systems.
8" RS9 Adaptor Dimensions: Round male collar (slips down into chimney) 7 7/8". Plate 12.2" x 12.2"