The RELN 000077 Storm Vortex 9" Low Profile Catch Basin with Black Concave Grate is a square-shaped drain grate designed by the brand Reln. This unit is specifically compatible with the RELN 000077 Storm Vortex model and includes a black concave grate. With a sleek design and low profile, this catch basin is perfect for maintaining a clean and efficient drainage system in your bathroom or shower.