Mitered Drain - Green Angled Mitered Drainage Grate (4 inch) 3:1 Slope HDPE grates have UV inhibitor Not recommended for traffic loads Fits into PVC Schedule 40 or DWV Pipe Bell or fitting bell Made in the USA Mitered Drain is perfect for use in hard to drain areas where lack of grade difference is a problem. Because of its sloped grate, water flows directly into the pipe eliminating the drop typical in conventional inlets allowing for better drainage in flat areas that need extra slope to achieve proper drainage. Mitered Drain eliminates the standing water that occurs in the bottom of typical drop inlets. This is critical in areas where mosquito abatement is of concern. Mitered Drain is great for use as both an inlet and outlet for detention ponds, culverts, downspouts and numerous other applications. It also allows for maximization of use of bioswales for onsite water treatment. The useable area of the grate opening on Mitered Drain exceeds the cross sectional area of the pipe. Because it is mitered, or angled, it uses the full flow capacity of the pipe. In addition, the unique design reduces the chance of debris clogging the grate while preventing debris and animals from entering the pipe. Grates can be removed for maintenance.