Ratings & Reviews for Sigma ProConnex 2-in Zinc-plated steel Knockout Seal Conduit Fittings
Ratings may include incentivized customer reviews.
What Customers Are Saying
Customers overwhelmingly praise these plugs for their snug fit into knockout holes, requiring no tools and effectively sealing out pests, dust, and moisture. The snap-in design is consistently described as easy to install and removable for future upgrades. Reviewers highlight the sturdy, zinc-plated steel construction as durable and professional-grade, making them a reliable, affordable solution for closing unused electrical box openings. A few note sizing discrepancies between labeled and actual dimensions, and some mention difficulty installing if holes are slightly misaligned. Overall, most customers consider these an essential, go-to product for both professionals and DIYers.
Customer review summary generated by AI, including incentivized reviews.good product
Would RecommendGood knockout cover. You snap it in and it covers the knockout. It's metal. Seems like decent quality construction.
From 3_SLASH_4-in Zinc-plated steel Knockout Seal Conduit Fittings Verified Purchaser
Good product
Would RecommendGood knockout cover. You snap it in and it covers the knockout. It's metal. Seems like decent quality construction.
From 1_SLASH_2-in Zinc-plated steel Knockout Seal Conduit Fittings Verified Purchaser
Hole plug
I bought the wrong size. I took it Back
Good quality
Would RecommendEasy to use snap in
From 3_SLASH_4-in Zinc-plated steel Knockout Seal Conduit Fittings Verified Purchaser
Serves its purpose
Would Not RecommendFit well and fills the extra hole
From 1_SLASH_2-in Zinc-plated steel Knockout Seal Conduit Fittings Verified Purchaser
Knockout fitting
Would Recommendworked as intended.
Glad they have these available.
Works ok.
From 1_SLASH_2-in Zinc-plated steel Knockout Seal Conduit Fittings Verified Purchaser
Good quality
Would RecommendGood quality and not much to say, does what it intends to do
From 1_SLASH_2-in Zinc-plated steel Knockout Seal Conduit Fittings Verified Purchaser
Rambo
Would RecommendGood
From 1-in Zinc-plated steel Knockout Seal Conduit Fittings Verified PurchaserVerified Pro
Very sturdy and stays in hole!
Would RecommendStays in home securely and is very resistant to corrosion and rust.
Verified Purchaser
Great Product!
Would RecommendItem is very rigid and not pliable or flimsy like most. Resists rust and tarnishing as well.
From 1-1_SLASH_2-in Zinc-plated steel Knockout Seal Conduit Fittings Verified Purchaser
Works perfectly
Would RecommendWorked as expected. Would preferred if they were a bit stronger.
From 3_SLASH_4-in Zinc-plated steel Knockout Seal Conduit Fittings Verified Purchaser
Great solution
Would RecommendPerfect solution for closing gaps in my breaker box. Tight fit, so you’ll need to use some leverage.
From 1_SLASH_2-in Zinc-plated steel Knockout Seal Conduit Fittings Verified Purchaser
Perfect solution for plugging those extra holes.
Would RecommendI had an electrical panel that was a mess. Cleaning it up and consolidating feed-throughs left me with several holes to fill. This fit the bill without a huge expense. I needed both 1/2" and 3/4", but they both work the same. Easy enough to remove also, if you need to add a circuit.
From 3_SLASH_4-in Zinc-plated steel Knockout Seal Conduit Fittings Verified Purchaser
Good price and works well.
Would RecommendI had an electrical panel that was a mess. Cleaning it up and consolidating feed-throughs left me with several holes to fill. This fit the bill without a huge expense. I needed both 1/2" and 3/4", but they both work the same. Easy enough to remove also, if you need to add a circuit.
From 1_SLASH_2-in Zinc-plated steel Knockout Seal Conduit Fittings Verified Purchaser