For parts / repair.  New old stock, expired, but in unopened original packaging.

Brooks Instrument S237C073SFA 3" Diaphragm

This diaphragm comes with a Certificate Of Compliance from Brooks, with a Cure Date of 1993 and an Expiration Date of 2013.

The original protective plastic package appears to be unopened and sealed.

Due to the above mentioned expiration date, we are offering this piece AS-IS with no returns.