• Dimension: 100*100mm(3.94*3.94inch) • Drain Base Flange: 2'' Or 1.6" Outlet • Includes: Drain kit includes shower drain base, detachable water filter (adjustable tube), you can easily remove the cover for cleaning. • Preventing unpleasant smell, insects and mice from entering the house. • Installation: Square shower drain outlet easy to unload, fits US Drain Base System. Can be used in bathroom, kitchen, pool, balconies, garage, basement and toilet etc.