Polyester gas sampling bag with PTFE dual-valve, 2L Back Catalog number: HEDPOL32_2L Availability: In the manufacturer's stock Price on request - + Recommended 1970-0234 O-RING-234 For High Flow Damper Plate Price on request M-SPFSC-250 SPF Sample Cutter and Mat, for high temp Micro-chamber Price on request C-EZVOCTG Easy-VOC TubeTAG Interface Price on request