Mini basin (7" x 7")Standalone basin unit perfect for use both outdoors and indoors. Made of stainless steel it comes with an ADA compliant hole punched grating. The internal debris basket filters out any collected leaves or debris. 4" bottom outlet connection will require a schedule 40 adapter for connection with schedule 40 4" PVC pipes. Basin is a universal unit with connection openings for channels, but this version is sold strictly for standalone use and comes with