Please refer to the following links for warranty information.

GROHE: http://www.groheamerica.com/p/25_12978.html

BLANCO: http://www.blancoamerica.com/index.html?p=TECHNICAL_INFORMATION (Then click on warranty tab)

CALIFORNIA FAUCETS:  http://www.calfaucets.com/content.asp?section=warranty

TOTO: https://www.totousa.com/Default.aspx?tabid=214

 If you're having trouble finding information please contact us toll-free at (866)990-6080