Assists Watershed Back Into ShowerPerfect for Flat or Out-Sloping CurbsThis CRL Shower Door Threshold is mounted directly below the shower door to let the water drain back into the shower stall. Ideal for flat or out-sloping curbs. The rounded low contour on the Half Round Threshold will not harm feet. The Tapered Style Sill leaves a minimal sightline from the exterior of the shower. Thresholds may be used in conjunction with a bottom sweep.