Airmaster® 22681 Upblast Exhaust Shutter, 48 in, 50-3/4 in Opening Required, Aluminum
Item #BC415312
Airmaster® Exhaust Shutter, Upblast, Series: WC, Fits Fan Dia: 48 in, 50-3/4 in Opening Required, Aluminum
- For 48 in wall fans
- Open with fan pressure, gravity closes when fan turned off
- 1 in W.G. maximum differential pressure, 200 deg F without electric motor, 130 deg F with electric motor
- Self lubricating heavy duty nylon bearings
- Felt seals between adjacent blades
- Screw mounting, polyurethane sponge seals on ledge and felt between adjacent blades
- 50 in square x 6 in D size
- 20 17/64 in Dia hole
- 50 in square inside, 53 in square outside
- MK-4782 motor number