The NESCO RW2520 Reducing Washer is a reliable solution for adapting a 2½-inch knockout opening to accept a 2-inch conduit or connector — no extra hardware required. Designed for professional electricians and contractors working on commercial and industrial installations, this washer simplifies panel wiring, control cabinet builds, and enclosure work where knockout sizes don't match the conduit run. Its solid steel construction ensures a secure, rattle-free fit that holds up in demanding job-site conditions. Rated for dry locations, the RW2520 is a go-to fitting for keeping your rough-in work clean and code-compliant.

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