Varo Diode replacement

I have a Honeywell Electronic air cleaner that has a pair of now open in both directions Varo H447 7337 diodes in its rectifier circuit. The stated output of the power supply is 8,150 V at 2.1 ma. They are black epoxy cases, about 1 inch long. Is there a replacement? And if so what is it? And can I purchase only 2 or thereabouts.

Thanx, MikeG

Hi Mike. Thanks for contacting Digi-Key.
I checked and could not find any information on those diodes in our system or doing an Internet search.
If you have any additional information,feel free to contact us and we can search again.