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The Arlington NM900 is a non-metallic snap-in knockout bushing made from durable plastic. This product is designed for trade size 1/2 inch openings, helping to cover unused knockouts safely and efficiently in electrical boxes or enclosures. It features a black color that matches standard electrical equipment.
This snap-in bushing prevents dust and moisture from entering electrical boxes. It is ideal for use in electrical installations requiring safety and durability.
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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