Flow control adapter comes with 0-4mm high vacuum PTFE valve with metering tip to adjust the air flow. The O-rings are completely enclosed with thin layer of PTFE around the high vacuum valve. This new design makes it inert to most chemicals/solvents used in column chromatography. Adapter has ball joint size of 35/20 to be used with ball joint clamps (730035, sold separately)
Warning: Last items in stock!