O – ring, 18 x 5.0 mm – Viton, Part# 4070321 – vacstellar

Description

This O-ring is made from Viton. Viton is a special rubber that handles heat very well. It also resists oils and chemicals much better than standard rubber. This makes it perfect for the tough conditions inside a vacuum pump .

This O-ring fits many popular pump models. It works with Pfeiffer DUO pumps like the DUO1.6, DUO2.5, DUO2.5C, DUO3, DUO5, DUO5C, DUO6, DUO6M, DUO11, DUO11M, and DUO11MC . It also fits the UNO6 and Welch CRVpro6 and CRVpro8 models