4" Square Extension Rings
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Part #RACO 187 4" SQUARE EXTENSION RING 1-1/2" DEEP (8)1/2" & (4)3/4" KO'S 22.5 CUBIC INCHES ATTACHES TO SWITCH BOXES DRAWN STEEL RACO® Extension Ring, 2 Gangs, 12 Knockouts, 1/2 in, 3/4 in Knockout, 4 in Length, 4 in W, 1.56 in D, Squared, 22.5
MFG #187
285 in Stock. More available 08/22/2026
$8.68/EA
Part #RACO 202 4" SQUARE EXTENSION RING 1-1/2" DEEP (8)3/4" KO'S 22.5 CUBIC INCHES DRAWN STEEL BOX RACO® Extension Ring, Combo Heads, 8 Knockouts, 3/4 in Knockout, Squared, 22.5 cu-in, Steel, Pre-Galvanized, Silver
MFG #202
114 in Stock. More available 08/24/2026
$7.77/EA
Part #RACO 203 4" SQUARE EXTENSION RING 1-1/2" DEEP (8)1/2" (4)3/4" KO'S 22.5 CUBIC INCHES DRAWN STEEL BOX 64533 RACO® Extension Ring, 2 Gangs, 12 Knockouts, 1/2 in, 3/4 in Knockout, 4 in Length, 4 in W, 1.56 in D, Squared, 22.5 cu-in, Surface M
MFG #203
1615 in Stock. More available 09/15/2026
$4.65/EA
Part #RACO 207 4" SQUARE EXTENSION RING 2-1/8" DEEP (6)TKO & (6)1/2" KO'S WELDED STEEL RACO®, 207, Square Box Extension Ring, 12 Knockouts, 1/2 in Knockout, 4 in Length, 4 in Width, 2.19 in Depth, Squared Shape, Knockout Cable Entry, 30.3 cu-in
MFG #207
350 in Stock. More available 08/25/2026
$10.38/EA
Part #RACO 201 4" SQUARE EXTENSION RING 1-1/2" DEEP (12)1/2" KO'S 22.5 CUBIC INCHES DRAWN STEEL BOX RACO® Extension Ring, 2 Gangs, 12 Knockouts, 1/2 in Knockout, 4 in Length, 4 in W, 1.56 in D, Squared, 22.5 cu-in, Surface Mount, Steel, Pre-Galv
MFG #201
249 in Stock. More available 11/07/2026
$5.15/EA
Part #RACO 187 4" SQUARE EXTENSION RING 1-1/2" DEEP (8)1/2" & (4)3/4" KO'S 22.5 CUBIC INCHES ATTACHES TO SWITCH BOXES DRAWN STEEL RACO® Extension Ring, 2 Gangs, 12 Knockouts, 1/2 in, 3/4 in Knockout, 4 in Length, 4 in W, 1.56 in D, Squared, 22.5
MFG #187
285 in Stock. More available 08/22/2026
$8.68/EA
Part #RACO 202 4" SQUARE EXTENSION RING 1-1/2" DEEP (8)3/4" KO'S 22.5 CUBIC INCHES DRAWN STEEL BOX RACO® Extension Ring, Combo Heads, 8 Knockouts, 3/4 in Knockout, Squared, 22.5 cu-in, Steel, Pre-Galvanized, Silver
MFG #202
114 in Stock. More available 08/24/2026
$7.77/EA
Part #RACO 203 4" SQUARE EXTENSION RING 1-1/2" DEEP (8)1/2" (4)3/4" KO'S 22.5 CUBIC INCHES DRAWN STEEL BOX 64533 RACO® Extension Ring, 2 Gangs, 12 Knockouts, 1/2 in, 3/4 in Knockout, 4 in Length, 4 in W, 1.56 in D, Squared, 22.5 cu-in, Surface M
MFG #203
1615 in Stock. More available 09/15/2026
$4.65/EA
Part #RACO 207 4" SQUARE EXTENSION RING 2-1/8" DEEP (6)TKO & (6)1/2" KO'S WELDED STEEL RACO®, 207, Square Box Extension Ring, 12 Knockouts, 1/2 in Knockout, 4 in Length, 4 in Width, 2.19 in Depth, Squared Shape, Knockout Cable Entry, 30.3 cu-in
MFG #207
350 in Stock. More available 08/25/2026
$10.38/EA
Part #RACO 201 4" SQUARE EXTENSION RING 1-1/2" DEEP (12)1/2" KO'S 22.5 CUBIC INCHES DRAWN STEEL BOX RACO® Extension Ring, 2 Gangs, 12 Knockouts, 1/2 in Knockout, 4 in Length, 4 in W, 1.56 in D, Squared, 22.5 cu-in, Surface Mount, Steel, Pre-Galv
MFG #201
249 in Stock. More available 11/07/2026
$5.15/EA