Vacuum/gas manifold with a Firestone rapid purge valve at one end and 0–5 mm high vacuum, Easy-Action PTFE stopcock ports with 3/8" O.D

Swagelok tubing connections. Each connection has an o-ring groove (o-rings supplied) for use with #11 Ace-Thred. Valve eliminates the need for a second tube. Simply connect one 10 mm O.D. arm to vacuum, other to gas source, and by half turn of the stopcock plug you can alternate between vacuum and gas. Shut-off float on gas side of valve prevents pressure buildup when system is purged. Plugs are PTFE with UHDPE or PTFE handles with FETFE o-rings.