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Product ID : DK2
DK2 Diff. Pump O-Ring Kit, For M-4 Pumps, pkg of 10, [B258] butyl inlet flange and 10[V111] Viton[R] Fill and drain O-Rings
Description
More details on associated web pages:
Diffusion Pump O-Ring Kits
S.I.S. supplies 'O' Rings for replacement in various models of Varian diffusion pumps.Diffusion Pump O-Ring Kits
S.I.S. supplies 'O' Rings for replacement in various models of Varian diffusion pumps.

The below listed vacuum flange copper gaskets are made from OFHC copper.

The following copper and gold plated copper gaskets are available
for the vacuum flanges on Thermo/Finnigan mass spectrometers.