Description
Upgrade or restore the structural integrity of your Aprilaire humidifier with the 4731 Base Assembly. This genuine OEM part comes in a sleek blue/gray finish and is engineered to replace the original base (part number 4328) for optimal system support and visual harmony. It’s specifically designed for use with Aprilaire Models 600, 600A, 600M, and also compatible with 400, 400A, and 400M series units.
Specifications:
- Product Length: 14.6 inches (37.084 cm)
- Product Width: 12 inches (30.480 cm)
- Product Height: 9.2 inches (23.368 cm)
- Product Weight: 1.8 lbs (0.816 kg)











