Devex Gas sampling bags 10L, PP screw cap valve, 3/16'' OD (4.76mm) Back Catalog number: HEDDEV71_10L Availability: In the manufacturer's stock Price on request - + Recommended RMK-0003-2S Markes Online Systems PM Kit Price on request HEDPOL32_2L Polyester gas sampling bag with PTFE dual-valve, 2L Price on request M-TSTIN Inserts, PTFE,pk 6 Price on request