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.Works Great
Would RecommendThese 1/2 in zinc plated seal fittings are great! They are easy to use and helped in completing a home DIY project. I would definitely recommend.
From 1_SLASH_2-in Zinc-plated steel Knockout Seal Conduit Fittings Verified PurchaserIncentivized
Press all the tabs down if able.
Easy Installation, Seals the one inch hole in a panel and the tabs hold tight.
From 1-in Zinc-plated steel Knockout Seal Conduit Fittings Verified Purchaser
Good cap
Great product works very well fit the right size hole
From 3_SLASH_4-in Zinc-plated steel Knockout Seal Conduit Fittings Verified PurchaserIncentivized
Cap review
Would RecommendThe metal finish is good and the part fit in the whole
From 1_SLASH_2-in Zinc-plated steel Knockout Seal Conduit Fittings Verified PurchaserIncentivized
Good product and price
Would RecommendThis is a different brand than by I usually get. The fit well without having to tweak them and cost less so a win all the way around.
From 3_SLASH_4-in Zinc-plated steel Knockout Seal Conduit Fittings Verified PurchaserIncentivized
Works great
Would RecommendClicked in nice and fixed my j box really nicely. Saves you money from buying a new j box.
From 3_SLASH_4-in Zinc-plated steel Knockout Seal Conduit Fittings Verified PurchaserIncentivized
Exactly what I needed
This worked as expected. Thankfully they had all that I needed in stock
From 3_SLASH_4-in Zinc-plated steel Knockout Seal Conduit Fittings Verified PurchaserIncentivized
Knockout plug.
Tight fitting and doesn’t loosen up. Low profile is a nice feature.
From 1_SLASH_2-in Zinc-plated steel Knockout Seal Conduit Fittings Verified PurchaserIncentivized
If you need to fix an accidental punch out...
Would RecommendWorks great! Covered back the hole we didn't mean to punch out. SO happy they make this!
From 1_SLASH_2-in Zinc-plated steel Knockout Seal Conduit Fittings Verified PurchaserIncentivized
works
Would RecommendGood to plug holes in an outlet box or breaker box
From 3_SLASH_4-in Zinc-plated steel Knockout Seal Conduit Fittings Verified PurchaserIncentivized
it works
Would RecommendGood if you popped one to many holes is an outlet box
From 1_SLASH_2-in Zinc-plated steel Knockout Seal Conduit Fittings Verified PurchaserIncentivized
What a knockout (cover)!
Would Recommend3/4" version of the half inch version, in casae you don't know your hole size.
From 3_SLASH_4-in Zinc-plated steel Knockout Seal Conduit Fittings Verified PurchaserVerified Pro Incentivized