Need to capture excess surface water with a catch basin that runs deeper underground? No problem. The 9 in. Square Catch Basin Riser adds up to 6 in. of height to your catch basin, eliminating the hassle of regrading or awkward piping. The 9x9 catch basin riser fits the 9 in. square catch basin drain and low-profile adapter, and accommodates a 9 in. catch basin drain grate, also known as a drain cover, on top. It’s made of high-impact polystyrene (HIPS) treated with UV inhibitors, and can be cut to size with a saw to fit your project needs. Applications Add up to 6 in. of height to a catch basin that sits deeper underground; enables catch basin to collect surface stormwater and direct to drain pipes before it causes costly property damage Use with a 9 in. square catch basin drain or 9 in. low-profile adapter with 9 in. square catch basin grate to drain surface water from lawns, landscaped areas, under downspouts, patios, and walkways The riser with catch basin and grate, as part of a complete drainage system, connect to drain pipes to capture surface water and direct it away for proper release downstream Features Riser can be cut to size, and can add up to 6 in. to top of basin Fits right on top of 9 in. square catch basin drains and 9 in. low-profile adapters Fits 9 in. square drain grates and 9 in. x 9 in. atrium drain grates for catch basins Tech Specs (pdf)
