The Airmax SilentAir Cooling Fan Kit, 115 V protects your compressor from overheating. The Airmax Cooling Fan Kit includes: fan, finger guard, power cord and mounting hardware. The Standard Cooling Fan Kit is a replacement part for Airmax SW20-SW40 Shallow Water Series and PS10-PS40 PondSeries 115V Aeration Systems. The Large Cabinet Cooling Fan Kit is a replacement part for Airmax LS40-60 LakeSeries 115V Aeration Systems.