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 SERLFP-5003 Spare back pressure adapter, ACTI-VOC Price on request U-T7EMP-2S Empty cold trap for UNITY series 2 Price on request U-COV100 O-Ring, low-emission, size 010, pk/100 Price on request