Tedlar® PVF Sampling Bags PTFE On/Off valve, 0,3L Back Catalog number: TDLC31Z_0.3L Availability: In the manufacturer's stock Price on request - + Recommended DEV31_5L DEVEX gas sampling bag, stopcock straight valve, 5L Price on request NDV61_25L New Devex Sampling Bag with ABS Valve & Septum Fitting, 25L Price on request MBT71_1L Multi-layer gas sampling bags, PP valve (4.76mm), 1L Price on request