Product Description
D704 Silicone Diffusion Pump Oil
Precision Plus PLUS 704 • Agilent DC704 • Varian DC704
Available Sizes
Each package size has its own SKU and product page.
OEM Oil Cross Reference
Common manufacturer names and oil numbers associated with this product family.
OEM names and part numbers are used for cross-reference purposes only.
Product Overview
D704 is a high-grade silicone diffusion pump fluid for high-vacuum service. It is intended for diffusion and oil-booster pumps where low backstreaming, oxidation resistance, and long service life are important.
This listing is for the 20 Liters package. Always verify the required oil type and viscosity in the pump manufacturer’s documentation before use.
Common Applications
Why Buy From Vacuum Pump Supply?
Pumps, parts, filters, repair kits, oils, and service items in one place.
We can help identify the correct fluid from the pump model or current oil number.
Linked package sizes make it easy to choose the quantity needed for maintenance.
Frequently Asked Questions
Is this an OEM-branded oil?
This product is sold as an alternative or cross-referenced oil where indicated. OEM names are used only to help identify compatible applications.
Can different vacuum pump oils be mixed?
Mixing oils is generally not recommended. Drain the existing fluid and follow the pump manufacturer’s change or conversion procedure whenever possible.
How do I confirm the correct oil?
Use the pump model, OEM oil number, manual, or nameplate information. Vacuum Pump Supply can help review the application before ordering.
Not sure this is the correct fluid?
Send us the pump manufacturer, model, or current oil number and we can help identify the proper product.
