The entire drain assembly will have to be replaced because there are no replacement parts availble for the pop-up drain assembly. If the drain is in the (01, 04, 10, 10B, 20, 26, 50, 52, 54, 56, 65) finish then the drain carries a 1 year warranty. All other finishes have no drain warranty.
The finish on the drain plug for my metal pop-up assembly is tarnishing, what should I do?
It is the process by which a vacuum chamber is used to deposit thin layers of film onto a particular surface. PVD finishes manufactured by Brasstech (other than drains) are warranted as long as the original purchaser owns their home.
What makes a PVD finish unique?
PVD finishes resist corrosion, tarnishing, and discoloration.