Repalcement septum for Tedlar bag TDLC31Z Back Catalog number: TDLC-S Availability: In the manufacturer's stock Price on request - + Recommended U-CENKIT Starter Kit: Centri booster pack (DiffLok caps and O-rings) Price on request C-CL100 Penclips, pk100 Price on request C-VAC-FULL-ARR-KI Vacuum SPME Arrow Full Starter Kit Price on request