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The Beswick four and six port selector valves offer bidirectional flow switching between four or six ports. It is designed with one central inlet at the bottom of the valve and four or six outlets on the perimeter of the valve body. Simply push the flat on the knurled knob while turning the knob to select the active port. Flow can also be directed from one of the outlet ports to the single inlet port. It is suitable for use with most liquids and gases (when a compatible O-ring material is selected). Select the O-ring most suitable for your design. Available in both 10-32 and 1/4-28 threaded designs.