*PLUMBERSSTOCK EXPERT* responded:
Hello! We appreciate your interest in our Kohler K-2972-KS-NA master shower 1/2 thermostatic valve. According to Kohler, this is a thermostatic valve and all it does is control the temperature. This valve needs to be paired with the volume control valve, for example, the K-2974-K-NA. We have attached the specification sheet of the Kohler K-2972-KS-NA for further information. Just click this Specification Sheet. If you're interested in purchasing the Kohler K-2972-KS-NA, feel free to click "Add to Cart", enter your zip code and you're good to go. Thank you for visiting PlumbersStock.com. Have a fantastic day!