LRSD - Ligature Resistant Shower Drain AquaDesignThe LRSD is a ligature resistant drain specially designed to minimize the risk of self harm and suicide using a technique called the crocodile roll. The LRSD is designed so the existing shower drain screen and clamping nut can easily be replaced with a ligature resistant version. The screen and clamping nut work on tiled showers and also on solid surface and acrylic shower pans. MORE INFO