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The Metallics 350KOS knockout seal has a part number of 90066 and comes with three pieces. It is designed for electrical, plumbing, heating, and air conditioning applications. The size of each seal is three and one-half inches, providing a reliable method to cover knockout holes in panel boxes.
This product is essential for ensuring safety and efficiency in various installations.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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