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100+ bought last week
Hubbell 4 -Pack 0.5-in Gray Metal Electrical Box Knockout Plug
Hubbell 4 -Pack 0.5-in Gray Metal Electrical Box Knockout Plug
$2.59
$2.59
Package Quantity: 4
Fits Opening: 0.5-in

100+ bought last week
Hubbell Bell 1 -Gang Aluminum Weatherproof New work/Old work Box extender Electrical Box
Hubbell Bell 1 -Gang Aluminum Weatherproof New work/Old work Box extender Electrical Box
$4.08
$4.08
Number of Gangs: 1

100+ bought last week
Hubbell Bell 1 -Gang Aluminum Weatherproof New work/Old work Box extender Electrical Box
Hubbell Bell 1 -Gang Aluminum Weatherproof New work/Old work Box extender Electrical Box
$8.81
$8.81
Number of Gangs: 1
Items Included in this Collection
Don't forget to complete your outdoor electrical project with other Hubbell weatherproof products - electrical box, extension rings or closure plugs.





Hubbell 1 -Gang Rectangle Gray Metal Weatherproof Electrical Box Cover
Item #735160 |
Model #MX4280S
TayMac In-Use Extra Duty® Metal Weatherproof Cover- the essential solution for all your outdoor electrical needs. With its innovative low-profile design, this cover is expandable for weatherproof protection while in-use. Built with superior commercial quality metal, it ensures exceptional durability and long-lasting performance. The corrosion protection finish adds an extra layer of defense against the elements. For added security, the cover is lockable in both collapsed and expanded positions. Upgrade your outdoor electrical setup with the TayMac.
Rugged metallic construction with a durable powder coat finish
Quick-Fit keyhole mounting system allows installation in under a minute
8-in-1, pre-configured for GFCI with knock-out technology for alternate devices
Lockable tab that fits a full size padlock
Gray finish
Expands from 2 in to 3-1/2 in
Meets or exceeds Extra Duty(R) specifications
NEMA 3R rated
cULus Listed
CA Residents: Prop 65 Warning(s)
General | |||
|---|---|---|---|
Color/Finish Family | Gray | Shape | Rectangle |
Type | In-use | Paintable | No |
Material | Metal | Number of Gangs | 1 |
Dimensions | |||
|---|---|---|---|
Cover Height (Inches) | 6.5 | Width (Inches) | 3.35 |
Depth (Inches) | 2.25 | ||
Features | |||
|---|---|---|---|
NEMA Configuration | NEMA 3R | Weatherproof | Yes |
Certifications | |||
|---|---|---|---|
CA Residents: Prop 65 Warning(s) | Safety Listing | cULus safety listing | |
Miscellaneous | |||
|---|---|---|---|
UNSPSC | 39121300 | ||
Review
116 Reviews
91% Recommend this product
The average rating may include incentivized reviews that are labeled with a badge. Select customers might be asked to provide honest feedback (good or bad) in exchange for a small reward.
+ 3 images
116 Customer Reviews
Don't buy
We don't like it at all. It is hard to open and hard to shut and if you use a 3 prong plug, it won't shut.
WaterAugust 6, 2025
From 2 -Gang Rectangle Gray Metal Weatherproof Electrical Box Cover Verified Purchaser
From 2 -Gang Rectangle Gray Metal Weatherproof Electrical Box Cover Verified Purchaser
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Secure
Bought this to replace the plastic cover for my outside receptacle that someone broke. Keeps the outlet clean and secure.
MinaAugust 25, 2025
Verified Purchaser
Verified Purchaser
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You need an outlet box to accompany this box.
First, no indication that an outlet box was not included. Second, not enough of a depression at bottom of box design for a heavy duty outlet cord to be able to close the box tightly and keep the moisture out. I like to keep my irrigation pump plugged in during summer months.
RootieSeptember 18, 2024
Verified Purchaser
Verified Purchaser
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Response from Hubbell Product Expert
The MX4280S is a cover, and has the capacity for 10AWG cords to exit the cover, when the cover is closed and in the “in-use” expanded position. It wi...
Hubbell Product ExpertSeptember 26, 2024

Better than plastic
Durable, not plastic, can only use verticle, gravity to secure front, also lockable
hangry_guyMay 22, 2025
Verified Purchaser
Verified Purchaser
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Response from Hubbell Product Expert
Thank you for the positive review of the Hubbell product.
Hubbell Product ExpertMay 23, 2025

Master electrician
I have used these 2 times and they break immediately I never install one again. Don't waste your money.
SparkyJanuary 4, 2025
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Response from Hubbell Product Expert
Please contact our Technical Support for assistance with the TayMac Sku# MX4280S as we have had no other issues with this part or you can always cont...
Hubbell Product ExpertJanuary 8, 2025

Hinge sucks
Hinge sucks
Yes I DidSeptember 18, 2025
Verified Purchaser
Verified Purchaser
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Response from Hubbell Product Expert
We are sorry to see a poor rating on this product. The design of the cover, that allows for it to be used in the “in-use”, or collapsed position, req...
Hubbell Product ExpertSeptember 22, 2025

What we needed
We needed a heavy duty plug cover that locked for electrical outlets on our front porch. This more than fit the bill. It’s a little cumbersome to install but not so much that you can’t do it. It just helps to have a couple of extra hands to hold box cover open while you tighten mounting screws.
TommyMarch 24, 2023
Verified Purchaser
Verified Purchaser
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Response from Hubbell Product Expert
Thanks for the positive feedback and 5-star rating.
Hubbell Product ExpertMarch 27, 2023

Just what I needed
This metal cover was just what I needed to cover an outdoor outlet. However, I needed to file some casting flash out of one of the holes before I could install it.
LostSalmonFebruary 2, 2024
From 2 -Gang Rectangle Gray Metal Weatherproof Electrical Box Cover Verified Purchaser
From 2 -Gang Rectangle Gray Metal Weatherproof Electrical Box Cover Verified Purchaser
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Best design yet!
I'm an electrician, have installed many in-use covers. I like these metal ones over the various plastic designs, hands down. But now this newer, smaller profile cover is the best design yet. Sure, they're just a little tricky to install, but so are all the other in-use covers. Having done a bunch of them, of course it becomes easy. Love it, love it, love it. Looks great, does the job perfectly, customers are happier and safer.
WaynoApril 16, 2021
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Response from Hubbell Product Expert
Thank you for your wonderful review and for your support of Hubbell TayMac.
Hubbell Product ExpertJune 29, 2021

Right electrical components for the job
Lowe's had the right stuff
WB diyJune 14, 2025
From 2 -Gang Rectangle Gray Metal Weatherproof Electrical Box Cover Verified Purchaser
From 2 -Gang Rectangle Gray Metal Weatherproof Electrical Box Cover Verified Purchaser
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It is unfortunate that you did not find this product suitable for your needs. However, our tech support explained that the cover is collapsible. Ther...