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-T17O3P-2S Ozone precursors cold trap, UNITY 2/xr and TD-100/ Price on request M-SPC15-120 Collar spacer, alum 15mm, for M-CTE120I,pk 6 Price on request U-T1KORI Empty cold trap, KORI-xr Price on request