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 U-COV1516 Spare O-ring, black, for POD sampler (support body), pk 10 Price on request U-COV35 O-Ring, low-emission, size 035,pk10 Price on request U-T12ME-2S Materials emissions, C4 - C32, cold trap Price on request