Stainless Steel Curve 4" BrushedDescription The Kerdi Drain grate is designed for use with the Kerdi Drain flange which is sold separate. The 4 in. square drain grate comes with a frame, height adjustment collar and lateral adjustment ring. The grate accommodates tiles 1 4 in. to 1 1 4 in. thick and allows for lateral and tilt adjustment. The Kerdi Drain grate can be used in both commercial and residential applications. 4 in. square grate Brushed stainless steel in curve design Use