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Product ID : HDP2B
HDP2B Diffusion Pump Heater for use on, Varian VHS4, 208V, 1450W S.Plate, 4 3/4in dia.
Description
More details on associated web page:
Diffusion Pump Heaters
2 different styles for your needs.

2 different styles for your needs.

Invoil 704 is a single component silicone diffusion pump fluid for high vacuums 10-6 to 10-8 torr range.