Flush-mounted installation body 1/2" Universal for all flush-mounted thermostats

With 3-way diverter, temperature control, waterproof installation box, Kerdi sealing sleeve, sound insulation mat, and backflow prevention. The advantages of the Steintec box: 100% waterproof (prevents water damage), pre-assembled for installation, resource-efficiently manufactured from up to 50% recycled plastic (ABS), factory tested and easy to install, sound-insulated (flow noise reduced to a minimum).