Tedlar® PVF Sampling Bags PTFE On/Off valve, 1,6L Back Catalog number: HEDTDLC31Z_1.6L Availability: In the manufacturer's stock Price on request - + Recommended T-12AM Focusing trap, Air Monitoring, for TT24-7 Price on request U-COV108-H O-ring, Injector Liner, Black, High Temp, pk/1 Price on request U-COV03 O-Ring, Size 003, pk 10 Price on request