Can I use this with 27 140?A. The Grohe 19 724 can be used with the 27 140. Keep in mind you will need additional components (wall supply or shower arm diverter/wall supply with diverter trim & valve).
Will this control the pressure of the water or only the temperature?A. The Grohe 19 724 has a constant pressure when turned on and the temperature is controlled by positioning the handle. It is pressure balanced, which is the most common type of shower.