Calvana 2-Pack 12-Inch Fiberglass-Reinforced Catch Basin Drain Grate – Black

Overview

Calvana’s 2‑Pack 12‑inch Catch Basin Drain Grates deliver a durable, weather-ready solution for outdoor drainage. Crafted from polyethylene reinforced with 20% fiberglass, these grates resist warping and maintain their shape through sun, rain, and seasonal changes. The classic black finish complements most landscape styles while prioritizing practical performance.

Designed for 12-Inch Catch Basins

The square grate is sized to fit 12-inch catch basins, risers, and low‑profile adapters. It sits securely on compatible drainage components, helping surface water enter the drainage system with minimal splash and movement across yards, patios, and driveways.

Diamond Pattern for Debris Control

The diamond openings strike a balance between debris screening and efficient water passage. Leaves and small branches are less likely to enter the system, while rainwater continues to flow through for steady drainage.

• Open surface area: 53.1 square inches
• Flow capacity: up to 162 gallons per minute (GPM)
• Load rating: Class B up to 175 psi when installed correctly

Durability for Outdoor Use

Ideal for driveways, lawns, patios, walkways, and downspout drainage, the grate enables surface water to move into the catch basin and onward through connected pipes toward the discharge point. The 2‑pack provides a ready solution for pairing replacements or upgrading multiple sites.

• 12-inch square footprint aligns with standard basins
• Compatible with risers and low‑profile adapters for flexible installations

What You Might Experience

During routine rainfall or heavier downpours, the grate can help minimize standing water on hard surfaces by guiding water into the drainage system. Outcomes can vary with site conditions and installation accuracy, making this a sensible, refund-friendly upgrade rather than a guaranteed result.