Knockout Closers

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TB 1451

Part #TB 1451 1/2" KNOCKOUT PLUG GRAY PLASTIC T&B® Industrial Fitting Knockout Locking Plug, Non-Metallic, 1/2 in Size, For Use With: Rigid/IMC Conduit, Snap-In Mounting, Thermoplastic, 1.06 in Dia Dimensions

MFG #1451

65 in Stock. More available 02/17/2026 and 02/20/2026

VIEW BRANCH INVENTORY

$2.47/EA

QTY

U/M

EA BX /100CA /1000CS /1000

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TB 1453

Part #TB 1453 1" KNOCKOUT PLUG GRAY PLASTIC T&B® Industrial Fitting Knockout Locking Plug, Non-Metallic, 1 in Size, For Use With: Rigid/IMC Conduit, Snap-In Mounting, Thermoplastic, 1.59 in Dia Dimensions

MFG #1453

23 in Stock. More available 02/20/2026

VIEW BRANCH INVENTORY

$5.50/EA

QTY

U/M

EA BX /50CA /100CS /100

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TB 5710

Part #TB 5710 1/2" KNOCKOUT PLUG NEOPRENE NEMA3R -4 -6 -13 T&B® Industrial Fitting Liquid Tight Knockout Plug, 1/2 in Size, For Use With: Liquid Tight Flexible Metal Conduit Fitting, Snap-In Mounting, Neoprene, 1-9/32 in Dia Dimensions

MFG #5710

71 in Stock. More available 02/20/2026

VIEW BRANCH INVENTORY

$9.32/EA

QTY

U/M

EA BX /100CA /1000CS /1000

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TB 5711-TB

Part #TB 5711-TB 3/4" KNOCKOUT PLUG NEOPRENE NEMA3R -4 -6 -13 T&B Liquidtight Fittings, 5711-TB, Plug, 3/4 in Size, Neoprene

MFG #5711-TB

42 in Stock. More available 02/20/2026

VIEW BRANCH INVENTORY

$12.72/EA

QTY

U/M

EA BX /50CA /500CS /500

ADD TO CARTADD TO LIST

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TB 1452

Part #TB 1452 3/4" KNOCKOUT PLUG GRAY PLASTIC T&B® Industrial Fitting Knockout Locking Plug, Non-Metallic, 3/4 in Size, For Use With: Rigid/IMC Conduit, Snap-In Mounting, Thermoplastic, 1.3 in Dia Dimensions

MFG #1452

269 in Stock. More available 02/20/2026

VIEW BRANCH INVENTORY

$2.92/EA

QTY

U/M

EA BX /100CA /1000CS /1000

ADD TO CARTADD TO LIST

Compare

TB 1451

Part #TB 1451 1/2" KNOCKOUT PLUG GRAY PLASTIC T&B® Industrial Fitting Knockout Locking Plug, Non-Metallic, 1/2 in Size, For Use With: Rigid/IMC Conduit, Snap-In Mounting, Thermoplastic, 1.06 in Dia Dimensions

MFG #1451

65 in Stock. More available 02/17/2026 and 02/20/2026

VIEW BRANCH INVENTORY

$2.47/EA

QTY

U/M

EA BX /100CA /1000CS /1000

ADD TO CARTADD TO LIST

Compare

TB 1453

Part #TB 1453 1" KNOCKOUT PLUG GRAY PLASTIC T&B® Industrial Fitting Knockout Locking Plug, Non-Metallic, 1 in Size, For Use With: Rigid/IMC Conduit, Snap-In Mounting, Thermoplastic, 1.59 in Dia Dimensions

MFG #1453

23 in Stock. More available 02/20/2026

VIEW BRANCH INVENTORY

$5.50/EA

QTY

U/M

EA BX /50CA /100CS /100

ADD TO CARTADD TO LIST

Compare

TB 5710

Part #TB 5710 1/2" KNOCKOUT PLUG NEOPRENE NEMA3R -4 -6 -13 T&B® Industrial Fitting Liquid Tight Knockout Plug, 1/2 in Size, For Use With: Liquid Tight Flexible Metal Conduit Fitting, Snap-In Mounting, Neoprene, 1-9/32 in Dia Dimensions

MFG #5710

71 in Stock. More available 02/20/2026

VIEW BRANCH INVENTORY

$9.32/EA

QTY

U/M

EA BX /100CA /1000CS /1000

ADD TO CARTADD TO LIST

Compare

TB 5711-TB

Part #TB 5711-TB 3/4" KNOCKOUT PLUG NEOPRENE NEMA3R -4 -6 -13 T&B Liquidtight Fittings, 5711-TB, Plug, 3/4 in Size, Neoprene

MFG #5711-TB

42 in Stock. More available 02/20/2026

VIEW BRANCH INVENTORY

$12.72/EA

QTY

U/M

EA BX /50CA /500CS /500

ADD TO CARTADD TO LIST

Compare

TB 1452

Part #TB 1452 3/4" KNOCKOUT PLUG GRAY PLASTIC T&B® Industrial Fitting Knockout Locking Plug, Non-Metallic, 3/4 in Size, For Use With: Rigid/IMC Conduit, Snap-In Mounting, Thermoplastic, 1.3 in Dia Dimensions

MFG #1452

269 in Stock. More available 02/20/2026

VIEW BRANCH INVENTORY

$2.92/EA

QTY

U/M

EA BX /100CA /1000CS /1000

ADD TO CARTADD TO LIST

Results Per Page

12243648