Tedlar® PVF Sampling Bags PTFE On/Off valve, 1,6L Back Catalog number: HEDTDLC31Z_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 C-VAC-PIN Vacuum closure Pin Price on request P-CPU10 Unions, for VOC-Mole cap assembly,pk10 Price on request