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 MBT71_1L Multi-layer gas sampling bags, PP valve (4.76mm), 1L Price on request 1233 BALLOONS FOR GAS SAMPLING, 4Liters Price on request U-T19PAH-2S PAH cold trap, UNITY 2/xr and TD-100/xr Price on request