The ValveTool™ is very popular because it is designed to reach onto your HPLC instrument's, Rheodyne™ or a Valco™ Injector while tubing is still attached to the Injector or for use on other valves with 1/4" connecting nuts .
Easy to tighten or loosen the 1/4" connecting nuts without twisting the tubing during wrenching. The opposite end of the ValveTool™ is a 5/16" flat wrench.
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