Knockout Closers

Filter

Skip to Results

Search Within Brand

Stocked Items

In Stock

Size

Results Per Page

12243648

4 items

Sort by

Best MatchTop ProductsProduct: A to ZProduct: Z to APrice: Low to HighPrice: High to Low

Hide/Show Images

content loaded

Compare

RACO 1040

Part #RACO 1040 3-1/2" HOLESEAL 2 PIECE STEEL RACO® Knockout Seal, 2-Piece, For Use With: Box/Panelboard, 3-1/2 in Trade Size, Steel, Electro-Plated Zinc, Silver, 4-3/8 in W x 5/8 in D

MFG #1040

30 in Stock. More available 05/04/2026

VIEW BRANCH INVENTORY

$20.01/EA

Regular Price: $77.98/EA, you save $57.97 (74%)

QTY

U/M

EA BX /10

ADD TO CARTADD TO LIST

Compare

RACO 1039

Part #RACO 1039 3" HOLESEAL (2)PIECE STEEL RACO® Knockout Seal, 2-Piece, For Use With: Box/Panelboard, 3 in Trade Size, Steel, Electro-Plated Zinc, Silver, 3-13/16 in W x 5/8 in D

MFG #1039

44 in Stock. More available 04/25/2026 and 05/04/2026

VIEW BRANCH INVENTORY

$15.92/EA

Regular Price: $63.12/EA, you save $47.20 (75%)

QTY

U/M

EA BX /10

ADD TO CARTADD TO LIST

Compare

RACO 1041

Part #RACO 1041 4" HOLESEAL (2)PIECE STEEL RACO® Knockout Seal, 2-Piece, For Use With: Box/Panelboard, 4 in Trade Size, Steel, Electro-Plated Zinc, Silver, 4-29/32 in W x 5/8 in D

MFG #1041

57 in Stock. More available 05/04/2026

VIEW BRANCH INVENTORY

$24.81/EA

Regular Price: $92.54/EA, you save $67.73 (73%)

QTY

U/M

EA BX /10

ADD TO CARTADD TO LIST

Compare

RACO 1037

Part #RACO 1037 2-1/2" HOLESEAL (2)PIECE STEEL RACO® Knockout Seal, 2-Piece, Steel, Electro-Plated Zinc, 0.625 in L x 3.188 in W x 3.188 in H

MFG #1037

79 in Stock. More available 05/09/2026

VIEW BRANCH INVENTORY

$12.63/EA

Regular Price: $51.03/EA, you save $38.40 (75%)

QTY

U/M

EA BX /10

ADD TO CARTADD TO LIST

Compare

RACO 1040

Part #RACO 1040 3-1/2" HOLESEAL 2 PIECE STEEL RACO® Knockout Seal, 2-Piece, For Use With: Box/Panelboard, 3-1/2 in Trade Size, Steel, Electro-Plated Zinc, Silver, 4-3/8 in W x 5/8 in D

MFG #1040

30 in Stock. More available 05/04/2026

VIEW BRANCH INVENTORY

$20.01/EA

Regular Price: $77.98/EA, you save $57.97 (74%)

QTY

U/M

EA BX /10

ADD TO CARTADD TO LIST

Compare

RACO 1039

Part #RACO 1039 3" HOLESEAL (2)PIECE STEEL RACO® Knockout Seal, 2-Piece, For Use With: Box/Panelboard, 3 in Trade Size, Steel, Electro-Plated Zinc, Silver, 3-13/16 in W x 5/8 in D

MFG #1039

44 in Stock. More available 04/25/2026 and 05/04/2026

VIEW BRANCH INVENTORY

$15.92/EA

Regular Price: $63.12/EA, you save $47.20 (75%)

QTY

U/M

EA BX /10

ADD TO CARTADD TO LIST

Compare

RACO 1041

Part #RACO 1041 4" HOLESEAL (2)PIECE STEEL RACO® Knockout Seal, 2-Piece, For Use With: Box/Panelboard, 4 in Trade Size, Steel, Electro-Plated Zinc, Silver, 4-29/32 in W x 5/8 in D

MFG #1041

57 in Stock. More available 05/04/2026

VIEW BRANCH INVENTORY

$24.81/EA

Regular Price: $92.54/EA, you save $67.73 (73%)

QTY

U/M

EA BX /10

ADD TO CARTADD TO LIST

Compare

RACO 1037

Part #RACO 1037 2-1/2" HOLESEAL (2)PIECE STEEL RACO® Knockout Seal, 2-Piece, Steel, Electro-Plated Zinc, 0.625 in L x 3.188 in W x 3.188 in H

MFG #1037

79 in Stock. More available 05/09/2026

VIEW BRANCH INVENTORY

$12.63/EA

Regular Price: $51.03/EA, you save $38.40 (75%)

QTY

U/M

EA BX /10

ADD TO CARTADD TO LIST

Results Per Page

12243648