Galvanized steel is the outdoor drain cover specification that balances load capacity, corrosion resistance, and cost for applications where cast iron is overspecified and plastic is underspecified. The zinc galvanizing layer protects the steel from the rust that would otherwise develop within months of outdoor installation in wet conditions.
The 18x18-inch square format covers a standard sewer or drainage chamber opening in a single piece. The integrated base provides a stable seating perimeter that keeps the cover positioned under load and prevents the rocking that wears out both the cover and the chamber edge over time.
- Galvanized steel construction — the zinc layer protects against rust in permanent outdoor wet conditions; the corrosion resistance that bare steel can't provide.
- 18x18 inch square format — covers a standard sewer or drainage chamber opening in a single piece; no joints, no gaps.
- Integrated base — provides a stable seating perimeter; keeps the cover positioned under load and prevents rocking that wears out the chamber edge.
- Heavy duty outdoor application — suitable for residential and light commercial outdoor drainage chambers, sewer access points, and channel covers.
- Silver galvanized finish — the natural appearance of hot-dip galvanizing; consistent and maintenance-free for the life of the installation.
| Specification | Detail |
|---|---|
| Material | Galvanized steel |
| Finish | Silver (galvanized) |
| Dimensions | 18 x 18 in |
| Shape | Square |
| Includes | Cover and base |
| Application | Outdoor sewer covers, drainage chambers, channel covers |
The outdoor drain cover that handles the conditions without requiring maintenance. Galvanized, stable, and built for permanent outdoor installation.