Tedlar® PVF Sampling Bags PTFE On/Off valve, 1,6L Back Catalog number: TDLC31Z_1.6L Availability: In the manufacturer's stock Price on request - + Recommended SERZ-1070 Spare bag sampling accessory, ACTI-VOC Price on request T-9GPC General purpose carbon cold trap, TT24-7 Price on request U-RACK02 Maxi Rack (1 L to 6L canisters) Price on request