Tedlar PVF Gas Sampling Bags with PTFE straight On/Off valve, 2L Back Catalog number: HEDTDL31_2L Availability: In the manufacturer's stock Price on request - + Recommended C-POD-B010 Spare Diffusive Body, for POD sampler, pk 10 Price on request U-T9TNX-2S Unity 2/TD-100 Cold trap, Tenax TA Price on request T-13PAM Focusing trap, Photochemical Assessment Monitoring Stations (PAMS), for TT24-7 Price on request