You can send a request for quote for p/n 3872-91ALT1PC21.. to Power Air Consulting using powerairconsulting.com. This part is manufactured by Electric Boat Corp. The description of it is Manometer U Tube. The national stock number associated with this part is 6685002737005. 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 3872-91ALT1PC21.. part requirements.