Click to enlarge2.75" Annealed Copper Gasket
Fits 2.75" Conflat Viewports
1 Supplied With Viewport Purchases

• Annealed Copper Gasket
• Fits 2.75" OD Conflat Flange Viewport

Annealed Copper Gaskets (ACG) are NOT the same as our standard Copper Gaskets: (-CG Part Number)

2-3/4" OD CF Conflat Flange Equivalent Names:
275CF, CF35, CF38, CF40, CF275

2.75" Annealed Gasket


Click to enlarge
Click to enlarge
2.75" OD Conflat Series Hardware

2.75" OD Glass Viewport

Contact LDS Vacuum with any questions:
Phone (407)862-4643 via Fax (407)862-8723 or

LDS Vacuum Products is a 100% woman owned company and
certified Woman Owned Small Business (WOSB)
The logos and/or trademarks appearing on this page are not owned by or registered to LDS but, rather, designate products sold by LDS, and are owned and/or registered to the manufacturers or suppliers of the products.
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There is a global helium shortage. Each time an MRI is performed, helium is used. Please rethink your helium balloon purchase.