PTFE O-Rings for Microsyringe, 3pk

The PTFE O-ring is available in a 3-pack used in applications when the test liquid is incompatible with Viton, such as ketones like acetone and some organic acids such as acetic acid. When the PTFE O-ring is installed the liquid touches only glass, the PTFE plunger and o-ring, and the stainless steel needle.