Precision Flow Devices Model 401 Mass Flow Controller

PLEASE REVIEW: We would ask that potential buyers please examine the photographs carefully, and understand what you are buying. Reach out to us with questions, we're happy to help ! *Your purchase includes a 30 day warranty .* We cannot negotiate price or terms after the sale has closed. Payment is expected within 24 hours please, and in return, we'll ship quickly. We appreciate your consideration! (bcd: g-143)