Polyester gas sampling bag with PTFE dual-valve, 2L Back Catalog number: POL32_2L Availability: In the manufacturer's stock Price on request - + Recommended U-HSVB-20 Replacement Vial Block, for HiSorb Agitator Price on request OST-227-3141 Spare solid glass stopcock key, NS 14,5, 2pc/pk Price on request 1970-0011-R O-RING -011 .301 ID X .070 W Each Price on request