【Upgrade】 Fan Compatible with Broan 663/688【Not Fit 688-G/H/J/K】 663B/688B /
70CFM Compatible with Broan 663/688 Fan【Not Fit 688-G/H/J/K】. Compatible with Broan 663B/688B 663C/688C 663E/688E 670. PERFECT EXPERIENCE: S97012029 The fan assembly features high speed rotation and low noise.