You can send a request for quote for p/n 16638 to Power Air Consulting using powerairconsulting.com. This part is manufactured by Ysi Incorporated. The description of it is Hygrometer Dial Indicating. The national stock number associated with this part is 6685010522808. 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 16638 part requirements.