Atlantic Water Gardens Basin Kit with Pump for Formal Waterfall Spillways,  for 24-Inch Spillways The heart of Atlantic Formal Spillway Systems, Basin Kits provide everything you need to install Colorfalls, Water Walls and Spillways Seamless installation with four-inch garden block Three sizes of self-contained basins, paired with pumps and plumbing accomodate 12, 24 and 36-inch Formal Spillways Basin Kits include basin, Splash Mat, pump, plumbing, PVC spray glue, adjustment valve and Auto Fill, all in one box