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 M-TCN04 O-Ring, size 007, and spacer,pk 6 Price on request DEV71_5L Devex Gas sampling bags 5L, PP screw cap valve, 3/16'' OD (4.76mm) Price on request RMK-0027 Routine Maintenance kit, tube based systems, no co Price on request