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-COV10 O-Ring, low-emission,size 010, pk10(e2/e3 systems) Price on request HEDNDV32_5L New DEVEX gas sampling bags with PTFE dual-valve, 5L Price on request M-DSK15-250 Spacer disc, alum, 1.5mm, for M-CTE250I,pk 24 Price on request