AMERI KING AK-920F Series...
The Ameri-king AK-920F is a FAA TSOd approved GPS/Avionics fan, compact sized, delivers up to 26.6 CFM cubic feet per minute of forced air cooling to a variety of avionics equipment. It features ball bearing for highest reliability and long lasting. The AK-950F fan may be behind or beneath aircraft instrument panel or avionics equipment rack or cabin pressure bulkhead.
Power reverse polarity protection
Choice of 1, 2, 3, or 5 hose outputs
Hoses-Connector kit and hardware (included)
4-year extended warranty
Power: 14 or 28 VDC