Bobe Fire and Water 18" Slant Copper Scupper has a downward slant design that's appealing to the eyes, and refreshing to the ears. Not just for looks, the extended lip also protects tile and stone by moving water away from the pool wall and towards the pool. This scupper comes with standard 1-1/2" female welded inlet in back. Grounding lug also located on back side. Flanges have been added to aid installation. Flow rate is a gentle but steady 15 gallons per minute.