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 U-T19PAH-2S PAH cold trap, UNITY 2/xr and TD-100/xr Price on request RMK-0006 Routine maintenance kit for M-CTE120I Price on request C-POD-C010 Spare Cover, for POD sampler, pk 10 Price on request