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The BK 158-503 is a chrome-plated steel split plate designed for 1/2-inch copper pipe. Split plates, also called escutcheons or cover plates, slip around a pipe and close against the wall or ceiling surface to conceal rough cutouts and provide a clean, finished appearance. This plate is sold individually and is suited for trim-out work on residential and light commercial plumbing installations. Its chrome finish blends with standard fixtures and fittings commonly found in bathrooms, kitchens, and utility spaces.
The 158-503 is used wherever a 1/2-inch copper pipe passes through a wall, floor, or ceiling surface and a finished appearance is required. It is a common trim item on supply lines, shutoff valve installations, and similar exposed-pipe applications. Plumbers and finish tradespeople typically install these during trim-out after rough-in inspections are complete.
Designed as an OEM-style trim accessory for 1/2-inch copper pipe installations in standard residential and light commercial plumbing systems.
A licensed plumber or finish tradesperson typically installs split plates during the trim-out phase of a plumbing project. No special tools are required beyond basic hand tools. The split design allows the plate to be placed around an existing pipe without cutting water supply or removing fittings. Ensure the wall or ceiling surface is clean and dry before seating the plate for a flush fit.
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