O-rings, PTFE for ASE 200 and 300 Caps, 100pk, Replaces Dionex #049457

• Smooth inner surfaces for easier cleaning.


• Caps include frit, PEEK washer, PTFE O-ring, threaded insert, and snap ring.


• Caps are serialized for easy sample identification.

We guarantee the compatibility of Restek and Dionex ASE parts only between entirely assembled caps and bodies. For example, if a Restek cap is assembled using all Restek parts, then it is compatible with a Dionex body. However, if a Restek cap has a Dionex insert (or vice versa), we cannot guarantee compatibility.

Note: Cell bodies also available.