Devex Gas sampling bags 10L, PP screw cap valve, 3/16'' OD (4.76mm) Back Catalog number: DEV71_10L Availability: In the manufacturer's stock Price on request - + Recommended M-MCHOR250 O-Ring, micro-chamber pan seal,pk 4 Price on request C-TAGKT TubeTAG starter kit (for SS tubes) Price on request T-TO15-KXR Focusing trap, Trace TO-15, for TT24-7 with Kori-xr Price on request