PTFE Split Backup Ring, Dash 008, Pack of 10, White Color, These PTFE Backup Rings Are Split Which Allows Them to Be Easily Installed a Rod Or Piston, They Withstand High Temperatures and Are Inert to Nearly All Oils and Chemicals

Buna-N O-Ring, 2.5MM Width, 55MM Inner Diameter, Pack of 25, Black Color, Buna-N is The Most Commonly Used O-Ring Material Due to Its Strength and Durability, It is Suitable For a Broad Range of Fluids Including Oils, Water and Mild Chemicals

Centering Ring With Screen For Vacuum Fitting, 3/4" Tube, Designed for Use in Ultra High Vacuum Applications, These Fittings Have a Center Ring That is Specifically Designed For These Applications, Connected With a Clamp and Another Quick-Clamp Fitting Which Provides Easy Access to The Process Line, These Fittings are Also Known as NW, KF and QF Fittings

Centering Ring With Screen For Vacuum Fitting, 1" Tube, Designed for Use in Ultra High Vacuum Applications, These Fittings Have a Center Ring That is Specifically Designed For These Applications, Connected With a Clamp and Another Quick-Clamp Fitting Which Provides Easy Access to The Process Line, These Fittings are Also Known as NW, KF and QF Fittings

Centering Ring For Vacuum Fitting, 1" Tube, Designed for Use in Ultra High Vacuum Applications, These Fittings Have a Center Ring That is Specifically Designed For These Applications, Connected With a Clamp and Another Quick-Clamp Fitting Which Provides Easy Access to The Process Line, These Fittings are Also Known as NW, KF and QF Fittings