40113, Conduit Knockout Seal - Electrical Conduit Seal The 40113 Conduit Knockout Seal is designed to close unused conduit knockouts in electrical boxes, providing a secure and protective seal. Manufactured by Mulberry Metal Products, this knockout seal is suitable for electrical distributors and switchgear suppliers seeking reliable conduit sealing solutions in wire and cable installations. Its bright zinc-plated finish offers corrosion resistance, ensuring durability in various electrical and lighting applications. Specifications Material: Steel Finish: Bright Zinc Plated Product Weight: 0.0200 lbs Manufacturer Part #: 40113 UPC: 095327401135 Features Closed type knockout seal for 1" conduit openings Corrosion-resistant bright zinc plating Durable steel construction Made in the USA Downloads & Links Catalog