Tedlar® PVF Sampling Bags PTFE On/Off valve, 1,6L Back Catalog number: TDLC31Z_1.6L Availability: In the manufacturer's stock Price on request - + Recommended 1970-0234 O-RING-234 For High Flow Damper Plate Price on request U-HSVB-20 Replacement Vial Block, for HiSorb Agitator Price on request M-MCTL250 Sample Pan Removal Tool, for high temp Micro-chamber Price on request