The T&S Brass 000529-20 is a faucet seat for BL-4500-01 faucets. It is corrosion-resistant because it is stainless steel, which makes it last longer. This T&S Brass 000529-20 Faucet Seat is 3/8 inch high with a 9/16-inch hexagon on top. It has a 1/2"-20 UNF male thread and a 1/4-inch inner diameter. It is easy to install and it is very useful in keeping your faucets in excellent working condition. It simply replaces the ones that came with your purchased faucet. The T&S Brass 000529-20 Faucet Seat has a limited one-year warranty. For more details, you can refer to the specification sheet. T&S Brass provides high quality solutions for the food service, plumbing and institutional markets with exceptional customer service.