- Stock 17
Utility Box Cover · 1.6" Diameter 20 Amp Opening · Vista 20121
Steel utility box cover plate for a 2-3/8 in wide utility box with a single switch style device opening. Commonly used in residential, commercial, and renovation work where a matching metal cover is required for a surface-mounted box.
What this product is for
This metal utility box cover plate is used to finish a 2-3/8 in wide utility box and provide the correct opening for a single switch style device. It is typically selected for exposed wiring methods, service work, and general branch circuit installations.
Use for
Use for utility boxes that require a matching metal cover with a single switch opening. Common applications include surface-mounted boxes in basements, utility rooms, workshops, light commercial spaces, and retrofit work.
Avoid for
Avoid using this cover where a duplex receptacle, single receptacle, decorator, or blank cover is required. Confirm the device opening and box width before ordering, as utility box covers are not interchangeable across all box styles.
Best for
Best for electricians and contractors replacing damaged covers, matching existing Vista utility boxes, or completing new installations with standard metal box cover hardware.
Installed in
Typically installed on 2-3/8 in wide steel utility boxes in residential and commercial electrical systems. Commonly seen in exposed work, service spaces, and areas where a metal box and cover assembly is preferred.
Why this product exists
This cover provides a clean and secure finished face for a utility box while matching the required device opening. It helps protect the box opening and supports a code-compliant finished installation when paired with the correct box and device.
Compared with similar products
This part is for a single switch device opening on a 2-3/8 in wide utility box. It is different from Vista 20127 duplex outlet covers, Vista 20122 single outlet covers with a round hole, and Vista 20129 decorator or GFCI covers. Always match the cover to both the box width and device type.
Specifications
Brand: Vista
Manufacturer part number: 20121
Product type: Metal utility box cover plate
Box compatibility: 2-3/8 in wide utility box
Approximate metric width: 60 mm
Device opening: Single switch style opening
Material: Steel
Typical use: Utility box cover for exposed or surface-mounted electrical box installations
Application: Residential and commercial
Aptico Supply Delivery
Fast Electrical Supply Delivery Across Ontario
Local delivery routes, pickup options, and contractor-focused service from our Elmira and Flesherton locations.

Delivery Built Around Electrical Contractors
Aptico Supply helps electricians, contractors, and commercial buyers get the electrical materials they need without unnecessary delays. Whether you are ordering for a jobsite, restocking service inventory, or arranging pickup, our delivery options are designed to keep work moving.
Free Daily Delivery
Free daily delivery is available for larger contractor accounts.
- Order by 9:00 AM for morning delivery
- Order by 2:00 PM for afternoon delivery
- Available in qualifying local delivery areas
Free Weekly Delivery
Free weekly delivery is available for smaller accounts in select service areas.
- Elmira area delivery: Tuesday
- Flesherton area delivery: Thursday
- Order by 11:00 AM on the route day
Pickup Options
Pickup is available from our Ontario locations for customers who prefer to collect their order directly.
- Elmira pickup available
- Flesherton pickup available
- Call ahead for large or special-order items
Local Delivery Areas
See our local delivery coverage below. Delivery charges may apply outside regular route areas or for oversized items.
Delivery Questions
Do you offer free delivery?
Yes, free delivery is available for qualifying contractor accounts and selected local delivery routes.
Can I pick up my order?
Yes, pickup is available from our Elmira and Flesherton locations.
Do delivery charges apply?
Delivery charges may apply outside regular local routes, for smaller orders, or for oversized and heavy items.
Can you deliver to jobsites?
Yes, jobsite delivery may be available depending on the order size, location, and delivery schedule.
Need Electrical Supplies Delivered?
Contact Aptico Supply to confirm your delivery options, pickup availability, or contractor account eligibility.
Contact Aptico SupplyWe accept the following payment methods:
To replace this text with your store's actual info on payment methods, go to "Design -> Menus & Pages -> Product Page Tabs" and edit the Payment methods page.
This page is intended for your policy regarding returns and refunds.
Here you can provide information as to what products can be returned, how many days your customers have to return their purchase, whether they will receive a refund in the original form of payment, a replacement or a store credit, who pays for the shipping of the previously purchased products to the store, and so on.
To replace this text with your store's actual return policy, go to "Design -> Menus & Pages -> Product Page Tabs" and edit the Return Policy page.
Related products
- Stock 8
Cooper Wiring Devices MPN: AHCL620R Locking receptacle · 20A 250V NEMA L6-20 2-pole 3-wire colour-coded ultra grip · Eaton Arrow Hart AHCL620R
- Stock 9
Cooper Wiring Devices MPN: AHCL1530R Locking receptacle · 30A 250V NEMA L15-30R 3-pole 4-wire industrial grade · Eaton Arrow Hart AHCL1530R
- Stock 46
Cooper Wiring Devices MPN: AHCL1730P Locking plug · 30A 600V 3-pole 4-wire L17-30P industrial grade · Eaton Arrow Hart AHCL1730P






