Polyester gas sampling bag with PTFE dual-valve, 2L Back Catalog number: POL32_2L Availability: In the manufacturer's stock Price on request - + Recommended M-TSTIN Inserts, PTFE,pk 6 Price on request T-12AM Focusing trap, Air Monitoring, for TT24-7 Price on request M-SPFSC-250 SPF Sample Cutter and Mat, for high temp Micro-chamber Price on request