Black Metal Box with Clamp | What Is It?Posted by plumbingpros in Home Improvement Tips, on October 15, 2015
Host Kevin O'Connor asks plumbing and heating expert Richard Trethewey, general contractor Tom Silva and landscape contractor Roger Cook to guess what this black metal box with a clamp might be.
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15 Have a licensed electrician make the final wire connections in the garage and at the main electrical panel.
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