The T&S Brass 000607-40 Bonnet Assembly is designed for durability and performance. Measuring 15/16" in height with a 1-1/4" hex size, this assembly is crafted from low-lead, chrome-plated brass, ensuring both safety and a sleek finish. It is NSF certified, making it suitable for use with Eterna cartridges. Ideal for maintaining the functionality of your faucet, this bonnet assembly combines quality materials with precise engineering for reliable operation.