The pop-up drain with overflow makes an excellent addition/upgrade to almost every bathroom sink. This pop-up drain features an easy to use the spring-loaded system, allowing the drain to pop-up and close with applied pressure. Enjoy the frustration-free installation and use without the old school pull rod to open and close the drain. 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.