Contractor Supply Warehouse 20 in. L x 2.5 in. W x 3/8 in. H - Knee Wall Countertop Support Bracket - 3 Pack

Durable & Rust-Resistant – Made from premium American steel (3/8" or 1/4" thick) with a double-layer black rust-inhibitor coating for long-lasting strength and a sleek, unobtrusive look. Heavy-Duty Support – Holds up to 750 lbs when properly installed, providing secure reinforcement for wood, granite, quartz, and stone countertops without visible corbels.