CureUV Brand Replacement for Steril-Aire - DE421VO UV Light Bulb for Germicidal Air Treatment Select Product Below:Bulb w/ Shatterproof Coating This replacement germicidal bulb has

This replacement germicidal bulb has a single pin base on both ends that is used for air purification

Unlike a normal glass plate

or coatings you are using do not specify a wavelength

It is compatible with the model

Steril-Aire - DE421VO  UV Light Bulb is 110 watts and 100% compatible with germicidal OEM Air sterilization filters

CureUV Brand Replacement for Steril-Aire - DE421VO UV Light Bulb for Germicidal Air Treatment Select Product Below:Bulb w/ Shatterproof Coating This replacement germicidal bulb hasGuaranteed Replacement Ultraviolet (UV) Bulb Medium Bi pin, Double Ends 110 Watts 40. 35 Inch Length Lamp Worry Free Performance for 1 Year Steril Aire DE421VO UV Light Bulb is 110 watts and 100% compatible with germicidal OEM Air sterilization filters, UV sanitizers, and air purifiers. This lamp also uses UV C light to inactivate and kill bacteria, molds, protozoa, viruses, and yeasts. This replacement germicidal bulb has a medium Bipin (2 pin) base