Style meets performance with Delta commercial products that not only provide long life, but also enhance their environments. From the beginning, Delta has sought out innovative solutions to help people use water in better ways. These smart features, found across our offerings, are helping to improve the lives of more and more people every day. 3 in. diameter flanges 1-1/2 in. wall clearance Concealed mounting hardware included ADA compliant when installed properly Stainless finish