Overview Product Description R7-RB66 Fireplace Blower Blower ONLY 80 CFM 1/1800 RPM no power cord .75 amps CW Rotation Opposite Drive End (Motor on Right) Overall Length = 8" Height 4.3 " Flange opening = 4.75" (also known as HB-RB66 in the 2006 Rotom Catalog pg 9) Cross References: R7-RB66, Heatilator FK21, GFK21, Security UZY3,GNBC30/30E GNBC30L GNBC33E GNDC30/30E GNDC30L GNDH30 GNRC33/33L GNTC50/50L/50LE MAX60L-FFMAX2G, (similar image on left) Product Videos Custom Field Product Reviews