ADDS UP TO 6 INCHES OF HEIGHT to capture water from the surface; ideal for a catch basin that sits deeper underground; riser can be cut to size with a saw to accommodate your project
WORKS IN A VARIETY OF LOCATIONS: Drain surface water from lawns, landscaped areas, under downspouts, patios and walkways
EASY TO INSTALL: Stacks right on top of 12 in. Catch Basin storm drain, fits a 12 in. Catch Basin Drain Grate on top; load rating based on type of grate installed
REDUCES EXTRA DIGGING: Eliminates the hassle of regrading or awkward piping
BUILT TO LAST: Made of durable polystyrene treated with UV inhibitors to prevent fading and cracking