The Norton Rixson 990M Electromagnetic Door Holder in sprayed aluminum features a compact projection of just 1-13/16" (46 mm), making it an unobtrusive addition to any doorway. It requires a 2" x 4" x 2-1/2" (51 x 102 x 64 mm) outlet box for mounting. Ensure the wall is properly reinforced and the outlet box securely fastened for optimal performance and safety. This durable door holder offers reliable functionality with a sleek finish. Upgrade your space with this efficient and dependable door holding solution, order yours today!