The NESCO BUS-15 1½" Plastic Insulating Bushing is a job-site essential for professional electricians and contractors who demand clean, code-compliant rough-in work. Designed to seat at the end of rigid or IMC conduit, this bushing protects wire insulation from sharp conduit edges — reducing abrasion, preventing nicks, and extending conductor service life. Lightweight and quick to install, it's the kind of detail-oriented fitting that keeps inspections smooth and callbacks off the schedule. Whether you're pulling wire through a panel knockout or finishing a conduit run in a commercial or residential application, the BUS-15 delivers reliable protection in a compact, durable plastic form.

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