The RAB FS-C is a 1-gang blank FS cover built for professional electricians and contractors who need a reliable, code-compliant blank-off for single-gang rectangular FS boxes in damp or exposed locations. Stamped from durable aluminum with a natural finish, it’s well-suited for utility rooms, mechanical spaces, garages, and outdoor conduit installations where a weatherproof seal is required. The included gasket provides moisture protection, and the two mounting screws ensure a secure, vibration-resistant fit — no extra hardware needed. Whether you’re closing off unused box positions during rough-in or finishing a surface-mount conduit run, the FS-C delivers a clean, inspection-ready result every time.

Specifications