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 M-DSK15-120 Spacer disc, alum, 1.5mm, for M-CTE120I,pk 24 Price on request U-COV10 O-Ring, low-emission,size 010, pk10(e2/e3 systems) Price on request U-T7EMP-2S Empty cold trap for UNITY series 2 Price on request