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SPI Supplies will be closed on November 26th & 27th in observance of Thanksgiving.
Orders placed during this time will be processed on Monday, November 30th.

Returning customer? Request an account for our new website on the contact form.


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SPI Supplies offers the widest range of grid patterns and grid materials for TEM. In addition to electrodeposited and etched metal grids, we offer silicon nitride and silicon oxide membranes as well as continuous, holey, lacey and micromachined carbon support films. Calibration services are available for our innovative asbestos index grids.

Items in Grids