Devex Gas sampling bags 5L, PP screw cap valve, 3/16'' OD (4.76mm) Back Catalog number: DEV71_5L Availability: In the manufacturer's stock Price on request - + Recommended OST-LENZ01341214 Silicone rubber sealings, Septa for GL 14, pk/100 Price on request U-T18325-2S EPA 325 cold trap, UNITY 2/xr and TD-100/xr Price on request C-HSINS10-4 Vial block insert, 20mL to 10mL, pk 4 Price on request