Polypropylene gas sampling bulbs have polypropylene stopcocks with free-turning Teflon® PTFE plugs. Ends accept 6.4 to 9.5mm (1/4 to 3/8") I.D. tubing Tube body is 5.1cm (2") O.D. x 22.2cm (8-3/4") long Stopcocks are 6.4cm (2-1/2") long Maximum recommended…