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Item #:
53151-1/2
1-1/2" Deep, 4" Square Extension Ring with (12) 1/2" Side Knockouts
1-1/2" deep, 4" square extension rings with (12) 1/2" side knockouts are added to junction boxes to increase wiring capacity and provide access for ad
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Item #:
53151-3/4
1-1/2" Deep, 4" Square Extension Ring with (8) 3/4" Side Knockouts
1-1/2" deep, 4" square extension rings with (8) 3/4" side knockouts are added to junction boxes to increase wiring capacity and provide access for add
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Item #:
53151-RED
Red 1-1/2" Deep, 4" Square Extension Ring with (6) 1/2" & (6) 1/2"-3/4" Side Knockouts
Red 1-1/2" deep, 4" square extension rings with (6) 1/2" & (6) 1/2"-3/4" side knockouts are added to junction boxes to increase wiring capacity and pr
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Item #:
53151-S
1-1/2" Deep, 4" Square Extension Ring with (6) 1/2" & (6) 1/2"-3/4" Side Knockouts
1-1/2" deep, 4" square extension rings with (6) 1/2" & (6) 1/2"-3/4" side knockouts are added to junction boxes to increase wiring capacity and provid
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Item #:
53151-SUB
1-1/2" Deep, 4" Square Extension Ring with (6) 1/2" & (6) 1/2"-3/4" Side Knockouts, Converts Handy/Utility Box and 1 or 2 Gang Ring
1-1/2" deep, 4" square extension rings with (6) 1/2" & (6) 1/2"-3/4" side knockouts, are used to converts handy/utility boxes and 1 or 2 gang rings. T
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Item #:
53151-SVT
Chicago Plenum, 1-1/2" Deep, 4" Square Drawn Extension Ring with (8) 1/2" & (4) 3/4" Side Knockouts
Chicago Plenum, 1-1/2" deep, 4" square drawn extension rings with air tight (8) 1/2" & (4) 3/4" side knockouts must be used with double gasketed seali
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Item #:
53151-SVTDA
Chicago Plenum, 1-1/2" Deep, 4" Square Drawn Extension Ring with (8) 1/2" & (4) 3/4" Side Knockouts for Dual Side Wiring Access
Chicago Plenum, 1-1/2" 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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Item #:
53C1-VT
Chicago Plenum, 1-1/2" Deep, Flat, 4" Square Double Gasketed Extension Ring
Chicago plenum, 1-1/2" deep, flat, 4" square double gasketed extension rings create an air tight seal between boxes and extension rings. They are add
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