Rustic INBOX Receptacle Block

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This 7.25" x 9.25" fiber cement mounting block delivers a stable, professional installation surface for Arlington INBOX recessed outlet boxes. Engineered to resist moisture, warpin g, and insect damage, it maintains dimensional stability across temperature and humidity fluctuations. The generous footprint ensures a flush, secure fit with fiber cement exterior siding systems, eliminating gaps and providing a clean finished appearance. Ideal for contractors and homeowners seeking reliable, long-lasting electrical installations. Show more