Schluter® KERDI-DRAIN GRATE KIT CLASSIC ROUND 6" STN STEELThe round 6" Classic grate for KERDI DRAIN a larger drain opening in brushed stainless steel with a softer, circular profile. The 6" size gives you a noticeably bigger drain area than the standard 4" grate, which matters in high volume shower applications like rain heads or multi body spray systems. Round drain grates have a different visual language than square they soften the geometry of the shower floor and integrate naturally with mosaic tile