Tedlar PVF Gas Sampling Bag with PP valve, 6L, 3/16'' OD (4.76mm) Back Catalog number: TDL71_6L Availability: In the manufacturer's stock Price on request - + Recommended M-MCHOR250 O-Ring, micro-chamber pan seal,pk 4 Price on request 1235 BALLOONS FOR GAS SAMPLING, 8Liters Price on request SERZ-1070 Spare bag sampling accessory, ACTI-VOC Price on request