Tedlar PVF Gas Sampling Bag with PTFE dual-valve, 5L Back Catalog number: TDL32_5L 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 1970-0025-R O-RING, -025 BUNA-N, DURO 70 (GilAir-3/GilAir-5/BD Price on request U-COV10 O-Ring, low-emission,size 010, pk10(e2/e3 systems) Price on request