Tedlar® PVF Sampling Bags PTFE On/Off valve, 0,3L Back Catalog number: HEDTDLC31Z_0.3L Availability: In the manufacturer's stock Price on request - + Recommended M-CHCT-250 Calibration tool for M-CTE250I, pk 4 Price on request OST-227-3141 Spare solid glass stopcock key, NS 14,5, 2pc/pk Price on request U-T5O3F-2S Ozone precursors/Freon cold trap Price on request