Hoover Canister Vacuum Cleaner Floor Brush Horse Hair With Pin Part # 40-1503-64,40-1505-69 Hoover Windtunnel Canister Vacuum Cleaner and Porta-Power Canister Floor Brush Horse Hair With Pin Fits Model S3501, S3601-050, S3610-050, S3630, S3636-050. Aftermarket Part # 40-1503-64.40-1505-69