1/4" x 3.5" Glass Tube - PTFE Analytical Caps

1/4" x 3.5" Glass Tube with PTFE Analytical Caps. Manufactured by Camsco in the USA.. 1/4" glass ATD sorbent tubes come in 3.5” length and are standard for PerkinElmer™, Markes™ and Shimadzu™ instruments.