Polyester gas sampling bag with PTFE dual-valve, 2L Back Catalog number: HEDPOL32_2L Availability: In the manufacturer's stock Price on request - + Recommended U-T11GPC-2S Unity 2/TD-100 Cold Trap carbon C4/5-C30/32 Price on request OST-201-3421 Tube gas sampling 350, nozzle (GL14), septum Price on request SERZ-1076 Spare filter assembly, ACTI-VOC Price on request