Choosing the Correct Microseal

Choose From Three Versions of Microseal

The choice of Microseal depends on whether you are operating at port pressures less than 3 psi or are using SPME. While there is considerable overlap in the pressure ratings for the #310 and #410 Microseals, the #410 is preferred because it incorporates a wiper rib to remove particles from the needle. The diagram below illustrates the decisions in choosing best Microseal version for both manual and automated injections.  Part numbers and pricing are all listed here for reference.