You can send a request for quote for p/n 8421521 to Power Air Consulting using powerairconsulting.com. This part is manufactured by Thomas Electronics Inc. The description of it is Electron Tube. The national stock number associated with this part is 5960002701061. This part belongs to part family. An associate from Power Air Consulting will respond within 15 minutes to your query. It is our pleasure to help you with 8421521 part requirements.