24x28.75" Black Flo-Well Dry Well Storm Water Leaching System. It is a structural polyolefin round drywell system with UV inhibitors. It holds 40 Gallons and has 18 each 1.5" knockout leaching ports and 3 each 4.5" knockouts inlet/outlet ports per panel. It fits 4" Sch-40 and 4" DWV pipe. It comes with a limited lifetime warranty.
WARNING: This product can expose you to chemicals, including Vinyl Chloride which is known to the State of California to cause cancer or birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov