Compatible with 100710 Replacement Knob: This single handle shower knob set is compatible with 100710 positemp single handle tub and shower, provides a constant water flow and maintains a constant water temperature, so you can enjoy a comfortable shower experience again. (Please make sure it is suitable for your shower.) Chrome Finish: The chrome plated surface of the single handle tub shower handle is stain and corrosion resistant, provides long-lasting cleanliness like a mirror, suitable for a variety of bathroom decoration styles Convenient C and H Markings: The shower knob replacements are engraved with clear cold water and hot water markings. Please note that the markings are installed in the same direction as the hot and cold water outlets for your convenience during installation : You can install it in minutes without any professional tools, please us if you have any questions about the installation, we will provide a video for your installation reference What You Get: 1 x Replacement Knob and Quality Customer Service, please us immediately if you have any questions