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Ensure a secure and reliable electrical installation with our 1" STL Knockout Seal 2 Pack. Designed for effective sealing of knockout openings in electrical panels, these durable seals prevent dust, moisture, and pests from entering, enhancing safety and performance. Easy to install and compatible with standard 1” knockout sizes, this pack provides an efficient solution for maintaining the integrity of your electrical systems. Perfect for both professional electricians and DIY enthusiasts.
