New from Omnifit is a range of large manual rotary distribution valves for high-precision gas and fluid control in laboratory equipment and analytical instruments. Pressure rated up to 33bar, the new valves have chemically inert PTFE wetted parts, sturdy Peek casings and KEL-F rotors. There are five-, seven-, nine- and and 11-port versions for four-, six-, eight- and 10-way distribution, as well as six- and 10-port versions for loop injection. Port connections are standard 0.25-28 UNF threads and port sizes are standard 1.5mm. Each port is identified by a simple click stop.