Elefloom Linear Shower Drain Shower Drain 12 Inch with Removable Grate Cover P

To be more technical, they require the shower floor to be sloped in one direction toward the drain, instead of the center drain requires sloping the floor in four different ways toward the drain.Curbless / BarrierUsing linear drains removes the traditional step over the curb in a traditional tub or shower, so you can have what they call a “barrier free” entrance to the shower.

eBay