This brass diverter is high quality. To operate the handle to divert the water to the filter system simply 1/4" turn the handle to a horizontal position for filtered water and turn back to a vertical position for normal hot/cold sink water. It allows a high flow rate when not diverting water through to the filter system.
To suit 1/4" counter top soft tubing
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Pictured here is the female thread adapter which is optional at the checkout stage. This adapter is required if your sink tap has a female thread.