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Item NumberQuantity
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Hubbell 250 Square Extension 4-11/16", 1-1/2" Deep, 1/2" & 3/4" Side Knockouts - Pkg Qty 25
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Hubbell 250 Square Extension 4-11/16", 1-1/2" Deep, 1/2" & 3/4" Side Knockouts - Pkg Qty 25

Item #: WBB196986

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Usually ships in 2 to 5 days Estimated lead times do not include weekends or holidays. Transit time is determined by shipping method and destination. Orders requiring credit information might take additional time.

List Price: $264.50 Save up to 65%
$3.74 each

Sold in packages of 25

Price: $93.50
Product Information
Customer Review
Product Q&A
Square Extension - 1/2" and 3/4" Side Knockouts - 25 Quantity

This 4"W x 4"H x 2-3/16"D extention is made of solid steel for long lasting durability. Adds cubic capacity to square boxes and can also be used as an outlet box for surface conduits. Combination screw heads allow for fast installation.

Product Specifications

    • COLOR FINISHGalvanized Steel
    • DEPTH INCHES2-3/16
    • TYPEElectrical Box Accessories

Avg. Customer Rating: (1 customer reviews)

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Not a great fit.

Your review: Trying to get these onto a standard 4-11/16" box is an exercise in frustration. It's possible, but you have to really not take no for an answer. The hole template is just a little off, so what should be a no-brainer requires a lot more effort.

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