Rainier Precision, Inc. was founded in Seattle, Washington
by J.W. Trosper over 50 years ago. The company has evolved and now operates under the Rainier Precision name. We have been family owned and operated for over 50 years.
The company manufactures all the Dri-Z-Air products at their Seattle facility.
Dri-Z-Air is a highly effective, salt based dehumidifier which
has been trusted since 1948.
Made with pride in the U.S.A.