DEVEX sampling bags with PTFE straight and septum valve with OD 6mm, 5L Back Catalog number: HEDNDV31_5L Availability: In the manufacturer's stock Price on request - + Recommended U-COV1517 Spare O-ring, brown, for POD sampler (diffusive body), pk 20 Price on request C-TAD-01 Tube Adaptor, for connection of 1/4" tubes to 1/8" flexible tubing Price on request TDL32_2L Tedlar PVF Gas Sampling Bag with PTFE dual-valve, 2L Price on request