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BOX52151-K - 4" 21 CU.IN. SQUARE BOX CONCENTRIC KNOCKOUTS The SQUARE Box series is designed to facilitate rapid installation thanks to brackets suitable for all kinds of wall & ceiling support. Available in non-gangable version for conduit entry or armoured & non-metaliic cable clamp, they are certified CSA.

4 in. Square Box 4 in. x 4 in. x 1-1/2 in. 21 cu. in. Concetric knockouts.

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