40 Watt UV C Germicidal Bulb For Aprilaire Model 1910
Replacement Ultraviolet Germicidal Lamps for the Aprilaire # 90.
Single UV bulb replacements fit April Aire 1910/1930 models; these bulbs are 18” long with 4 gold connector pins at the end. Manufacturer recommends UV bulbs to be replaced annually.
Note: 1910 Model requires 1 replacement bulb
1930 Model requires 2 replacement bulbs