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The ARLINGTON INDUSTRIES HC3792 is a hole cover designed to conceal and protect openings ranging from 3.75 inches to 9 inches in diameter. It provides a clean, finished appearance over unused or repurposed penetrations in walls, ceilings, floors, and panels. Electricians, HVAC technicians, and plumbers use this type of cover when decommissioning old pipe or conduit runs, relocating fixtures, or finishing rough-in work where an opening was left exposed. The HC3792 accommodates a wide range of hole sizes within its coverage range, reducing the need for multiple SKUs on a service truck or job site.
This hole cover is suited for residential and light commercial applications where a neat, professional finish is required after trade work is complete. Typical install scenarios include covering legacy knockouts in electrical enclosures, sealing wall penetrations after rerouting conduit or pipe, and finishing ceiling or floor openings following fixture changes. Its coverage range of 3.75 to 9 inches makes it adaptable across a variety of common rough-in and retrofit situations encountered in day-to-day service work.
Designed as a general-purpose hole cover for use over circular openings in walls, ceilings, floors, and enclosures measuring between 3.75 inches and 9 inches in diameter.
Installation is typically performed by a licensed electrician, plumber, or HVAC technician as part of finish or retrofit work. Ensure the surface around the opening is clean, dry, and free of debris before placing the cover. Verify the opening diameter falls within the 3.75 to 9 inch coverage range before installation. Follow applicable local building codes and NEC or IPC guidelines where penetration sealing requirements apply.
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