NDS 920B — 6" Square Satin Brass Grate with Low-Profile Adapter

The NDS 920B is a 6" square satin brass drain grate with a low-profile styrene adapter — designed to protect landscape and light-duty surface drainage while providing durable, corrosion-resistant performance.

• Durable materials: Solid brass grate mounted on a UV-stabilized high-impact polystyrene (styrene) low-profile adapter for rustproof, long-lasting service.
• Compact dimensions: Top measures 6-1/8" square; overall height 2-3/4"; grate openings are 3/8" wide for consistent debris control.
• Hydraulic capacity: Open surface area 11.6 sq. in.; drains up to 35.49 gallons per minute with 1/2" head—suitable for light flows in lawns, patios, and walkways.
• Compatibility: Designed to fit 3" or 4" sewer and drain pipe or fittings, 3" or 4" corrugated pipe, and 3" or 4" triple-wall pipe for versatile installation options.
• Performance & compliance: Load rating Class A, ADA compliant, and manufactured in the USA to meet common jobsite requirements.
• Includes & warranty: Supplied with brass screws and a styrene adapter; NDS backs the product with a limited lifetime warranty against defects in materials and workmanship.

Ideal for small lawns, landscaped areas, patios, and walkways, the 920B blends a traditional satin brass finish with easy, lightweight installation. Install directly onto compatible 3" or 4" fittings or corrugated sections; clean with mild soap and water as needed. For detailed installation drawings, flow capacity charts, and spec sheets, refer to the manufacturer's technical literature.