Tedlar PVF Gas Sampling Bag with PP valve, 5L, 3/16'' OD (4.76mm) Back Catalog number: TDL71_5L Availability: In the manufacturer's stock Price on request - + Recommended U-COV100 O-Ring, low-emission, size 010, pk/100 Price on request U-T9TNX-2S Unity 2/TD-100 Cold trap, Tenax TA Price on request OST-227-3141 Spare solid glass stopcock key, NS 14,5, 2pc/pk Price on request