Tedlar® PVF Sampling Bags PTFE On/Off valve, 1,6L Back Catalog number: TDLC31Z_1.6L Availability: In the manufacturer's stock Price on request - + Recommended U-COV1517 Spare O-ring, brown, for POD sampler (diffusive body), pk 20 Price on request U-COV450 O-Rings, low-emission,pk100 Price on request NDV31_5L DEVEX sampling bags with PTFE straight and septum valve with OD 6mm, 5L Price on request