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4-in x 4-in x 4-in Gray PVC New work/Old work Junction Box

Ratings & Reviews for CANTEX 4-in x 4-in x 4-in Gray PVC New work/Old work Junction Box

4.6
188
Review
 4.6 out of 5
189 Reviews


91% Recommend this product

Ratings may include incentivized customer reviews.

What Customers Are Saying

Customers overwhelmingly praise this junction box for exceptional durability and weatherproof performance in harsh outdoor environments. Most highlight its tight seals, resistance to moisture and bugs, and proven reliability in buried, marine, and trailer installations. The spacious 4-inch depth accommodates multiple wire gauges and connections easily. Reviewers appreciate the absence of pre-cut knockouts, allowing custom drilling for conduit, PVC risers, and water fittings. Users report versatile applications beyond standard electrical work, including security cameras, fan controls, and cable management. A few note confusion over product images. Overall, customers consider it an exceptionally reliable, adaptable solution.

Customer review summary generated by AI, including incentivized reviews.
189 Customer Reviews

Needs two more mounting dcrews

Would Recommend

Leaves enough room for wires

March 30, 2026
From 4-in x 4-in x 2-in Gray PVC New work_SLASH_Old work Junction Box Verified Purchaser
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Durable, spacious, and easy to use

Would Recommend

PVC box was sturdy and well built. Can fit a lot of junctions inside with plenty of knockouts

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Great Pricing

Would Recommend

They are well built. And are site drillable for any exterior installation

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Water tight electrical box and flexible conduit

Would Recommend

All three products' ability to be water tight and UV resistant. I am redesigning my solar array on the roof of my motor home. I have 5-200w CIGS panels and will need a junction box and want to sheathe the solar cables in a water tight & UV resistant box and conduit. These should fit the bill

March 7, 2026
From 4-in x 4-in x 2-in Gray PVC New work_SLASH_Old work Junction Box Verified Purchaser
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Look No Further for Junction Boxes

Would Recommend

Quality Product that always comes through in a pinch. I use these regularly for splicing locations. They have ample room for 2-2-2-4 AL USE splices.

March 2, 2026
From 6-in x 6-in x 4-in Gray PVC New work_SLASH_Old work Junction Box Verified PurchaserIncentivized
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great quality electrical box

Would Recommend

great low profile outdoor box to cap wires off outside

February 24, 2026
Verified Purchaser
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Great outdoor box

Would Recommend

Great size and strong plastic. Seal could be a little better but works good

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Big. Good.

Would Recommend

Wonderful large gangbox. Easy to modify for my project. Drilled easily and didn't have any chipping or warping.

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Make sure you seal it to prevent moisture.

Perfect size for what I needed used in ground for pool lights

February 21, 2026
Verified Purchaser
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It’s a plastic box

It’s a plastic project box. Good quality for cost. Good for non-industrial uses

February 19, 2026
From 8-in x 8-in x 4-in Gray PVC New work_SLASH_Old work Junction Box Verified Purchaser
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It’s a plastic box

Would Recommend

It’s a plastic project box. Good quality for cost. Great for non-commercial uses.

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Perfect for Larger Wires

Would Recommend

I purchased this box to junction large wires. It has a good seal and the mounting tabs were easy to access for screws. I used a paddle bit to quickly zip some holes in the side to route my wires.

February 18, 2026
From 6-in x 6-in x 4-in Gray PVC New work_SLASH_Old work Junction Box Verified PurchaserIncentivized
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Does not work well with Clamp-on connectors

Would Recommend

On the good side it is constructed of heavy duty plastic with a sealing gasket makes this a good weather resistant enclosure. However; the retaining screws are plated steel which can rust and the wall thickness is too thick to use a Die cast zinc Clamp-on type fitting without modification. I would have been nice to have thinner sections that would accept Clamp-on fittings.

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Bigger than it looks on the inside. Held electric

Would Recommend

Very sturdy, easy to install. The design looks to be very waterproof, which is the leading attribute.

February 15, 2026
From 6-in x 6-in x 4-in Gray PVC New work_SLASH_Old work Junction Box Verified PurchaserIncentivized
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Met my needs.

Meets all of my needs! I wanted to bury an electric box and used this as additional protection for the project. So far works great.

February 13, 2026
Verified Purchaser
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