The NDS 4 in. Green Flat Top Atrium Grate is constructed from structural foam polyolefin with UV inhibitors for long-lasting outdoor performance. Designed to fit 3 in. and 4 in. sewer and drain pipe and fittings, 4 in. corrugated pipe, and 4 in. triple wall pipe. Features an open surface area of 14.50 sq. in. and a flow rate of 19.00 GPM. Backed by a limited lifetime warranty.
- Material: Structural foam polyolefin with UV inhibitors
- Color: Green
- Open surface area: 14.50 sq. in.
- Flow rate: 19.00 GPM
- Fits 3 in. and 4 in. drain pipes and fittings
- Limited lifetime warranty