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-T19PAH-2S PAH cold trap, UNITY 2/xr and TD-100/xr Price on request U-T13DHS-2S DHS application cold trap, UNITY 2/xr andTD-100/xr Price on request C-EZVOCTG Easy-VOC TubeTAG Interface Price on request