Delta 661CBU Accessory Chrome Shower Head. Delta's Line of Commercial Products are an industry leader in the Bathroom Faucets, Shower Fixtures and Bathroom Accessories. The large line of Commercial Grade products are designed to withstand the every day wear and tear, and last for years to come. These products are ideal for hospitals, schools, and other high traffic applications. This Delta 661CBU Accessory Chrome Shower Head is designed to improve your homes shower. This Chrome Shower Head mounts easily onto any new or existing 1/2" shower arm. This Shower Head is backed by Deltas limited lifetime warranty.