CWD Accessories
611
Non-flanged horizontal mount exhaust backdraft damper
- Sizes available: 34"W x 34"H to 48"W x 48"H
- Galvanized Steel frame with aluminum blades
- Maximum free area velocity - 2250 fpm
- Optional motor pack available (411611)
- Use in roof curbs, duct work or wall collars when using a fan or power roof ventilator
2828.1
Speed Control (Rotary type) (10 Amps)
- Specially designed for use with S&P ventilators rated at 10 Amps or less
- Metal housing
- 10 A, 120 VAC, 60 Hz