The Dyconn Faucet 8.5" Bathroom / Vessel Sink Pop-Up Drain is certain to handsomely accentuate any bathroom decor. Solid brass construction promotes longevity while a spring-loaded push button enhances convenience and use. All of Dyconn faucets, parts and accessories come with a 1-year manufacturer warranty. Package includes drain and installation instructions. Note: If your sink has an overflow hole, you will need to purchase a pop-up drain with overflow. If your sink does not have an overflow, you will need to purchase a pop-up drain without overflow. Additionally, please confirm the drainage hole diameter of your sink. In order for the pop-up drain to fit properly, the threaded section of the pop-up drain must be the same size or smaller than the drainage hole diameter. Our pop-up drains will fit the standard 1 5/8” or 1 ¾” drainage hole. Review the specifications of the pop-up drain before purchasing.