NDS 5 in. Square Structural Foam Grate, Gray — Fits 4 in. Pipe

Reliable, lightweight and low-maintenance, the NDS 5 in. square structural foam grate provides effective surface drainage for yards, patios, walkways and light-duty drainage applications. Designed for long outdoor life, it resists fading and chemical exposure.

• Material: Structural foam polyolefin (HDPE) with UV inhibitors; chemical-resistant, rustproof and maintenance-free.
• Size & Compatibility: 5 in. square top; fits 4 in. sewer & drain pipe and fittings, 4 in. corrugated pipe and 4 in. triple-wall pipe.
• Performance: Open surface area 4.25 sq in; flow rate approximately 5.57 GPM for efficient surface drainage while minimizing debris entry.
• Load & Safety: ADA-compliant and heel-proof; recommended for pedestrian, bicycle and wheelchair traffic.
• Installation: Lightweight design for easy placement and handling; fits standard NDS basins and fittings—follow NDS installation instructions for secure seating.
• Maintenance: Simple to clean with a hose or mild detergent for buildup; UV protection reduces sun-related cracking and fading.

Backed by NDS product literature and decades of drainage experience, this gray 5 in. square grate is a durable, corrosion-free alternative to metal or concrete grates. See NDS drainage catalog for complete specifications and installation guidance.