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Item #:
53171-3/4
2-1/8" Deep, 4" Square Drawn Extension Ring with (8) 3/4” Side Conduit Knockouts
2-1/8" deep, 4" square drawn extension rings with straight (8) 3/4” side conduit knockouts are added to junction boxes to increase wiring capacity and
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Item #:
53171-S
2-1/8" Deep, 4" Square Drawn Extension Ring with (6) 1/2” & (6) 1/2”-3/4" Side Conduit Knockouts
2-1/8" deep, 4" square drawn extension rings with (6) 1/2” & (6) 1/2”-3/4" side conduit knockouts are added to junction boxes to increase wiring capac
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Item #:
53171-SVT
2-1/8" Deep, Chicago Plenum 4" Square Drawn Extension Ring with (8) 1/2” & (4) 3/4” Side Conduit Knockouts
Chicago Plenum, 2-1/8" deep, 4" square drawn extension rings with air tight (8) 1/2” & (4) 3/4” side conduit knockouts are added to Chicago plenum jun
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Item #:
53171-1
2-1/8" Deep, 4" Square Drawn Extension Ring with (8) 1” Side Conduit Knockouts
2-1/8" deep, 4" square drawn extension rings with (8) 1” side conduit knockouts are added to junction boxes to increase wiring capacity and provide ac
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Item #:
53171-OW
2-1/8" Deep, 4" Square Welded Extension Ring with (2) 1/2” & (4) 3/4" Side Conduit Knockouts
2-1/8" deep, 4" square drawn extension rings with (2) 1/2” & (4) 3/4" side conduit knockouts are added on “cut in” old work applications to increase w
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Item #:
53171-SVTDA
Chicago Plenum, 2-1/8" Deep, 4" Square Drawn Extension Ring with (8) 1/2" & (4) 3/4" Side Knockouts for Dual Side Wiring Access
Chicago Plenum, 2-1/8" deep, 4" square drawn extension rings with air tight (8) 1/2" & (4) 3/4" side knockouts have threaded tabs on both sides of th
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