Electrical Box Knockout Plugs, 2" Screw and Bar Electrical Hole Seal

HEAVY-DUTY GALVANIZED STEEL Built from durable galvanized steel with a protective zinc coating for excellent strength, corrosion resistance, and long-lasting performance. The embossed design adds rigidity while helping the knockout seal center securely over unused electrical box openings. | SECURE SCREW & BAR DESIGN The pre-assembled Type S screw and bar configuration provides a strong, dependable hold. Once tightened, the retaining bar firmly secures the knockout cover in place for a stable, vibration-resistant installation. | HELPS SEAL UNUSED KNOCKOUT HOLES Properly closes unused conduit and knockout openings to help prevent dust, dirt, moisture, and debris from entering electrical boxes, junction boxes, panels, and enclosures while protecting the wiring and connections inside. | FAST & EASY INSTALLATION No complicated installation process required. Simply insert the retaining bar through the knockout hole, position the seal over the opening, and tighten the center screw for a secure fit. Ideal for new installations, repairs, retrofits, and maintenance work. | AIRMONT PRODUCTS QUALITY Airmont Products delivers dependable electrical supplies designed for professional performance and everyday reliability. Our knockout seals are engineered with durable materials, practical installation features, and consistent construction for electricians, contractors, maintenance professionals, and homeowners.