Low profile for tight spaces. Designed for use on built up shower bases of tile or marble, where a shower pan liner is used. The clamping ring locking bolts screw into brass inserts to prevent stripping. Keyhole slots in the clamping ring allow it to beclamped without removing the bolts. Four weep holes in the drain assembly allow drainage from the pan liner. 2" IPS strainer barrel allows adjustment to the finished floor level. Solvent welds over 2" or inside 3" schedule 40 DWV pipe. Heavy duty 4" strainer.