Square box cover · 4 in single duplex opening · raised 3/8 in - Vista 20109
4 in square steel box cover with a single duplex receptacle opening and 3/8 in raised profile for mounting on a 4 in square box. Commonly used to support a duplex device where box depth and wall finish require a raised cover in commercial or residential installations.
What this product is for
This 4 in square box cover is used to mount one duplex receptacle on a 4 in square electrical box. The 3/8 in raised profile helps bring the device forward to suit the box and finished wall condition.
Use for
Use for commercial and residential branch circuit work, surface-mounted boxes, and other installations where a single duplex receptacle is being fitted to a 4 in square box. It is commonly selected for steel box systems in service rooms, utility spaces, and finished wall assemblies.
Avoid for
Avoid using this cover where a different device opening is required, such as decorator, GFCI, toggle, or double duplex layouts. Do not use it where box size, device layout, or raised depth does not match the installation.
Best for
Best for electricians who need a straightforward 4 in square cover for one standard duplex receptacle with a 3/8 in raised offset. It suits new construction, tenant improvements, and maintenance stock where matching the correct opening and raise is the main buying decision.
Installed in
Installed on 4 in square boxes in drywall, masonry, or exposed work depending on the box system and site conditions. 4 in is approximately 102 mm, and the 3/8 in raise is approximately 10 mm.
Why this product exists
This cover closes the front of a 4 in square box while providing the correct opening and support for a single duplex receptacle. The raised design helps align the device with the finished surface and can simplify device fit-up where a flat cover is not suitable.
Compared with similar products
Compared with flat covers, this version provides a 3/8 in raised offset. Compared with double duplex or decorator covers, it is intended for one standard duplex receptacle only. Typical buying checks are box size, device opening, and raised depth.
Specifications
- Brand: Vista
- Manufacturer part number: 20109
- Legacy reference number: 8365
- Product type: 4 in square box cover
- Device opening: Single duplex receptacle
- Raised depth: 3/8 in (approximately 10 mm)
- Box size: 4 in square (approximately 102 mm square)
- Typical standard pack: 25
- Typical carton pack: 100
- Material: Steel box cover type, exact finish not confirmed from source reviewed
Selection guidance: match the cover opening to the device type and confirm the raised depth needed for the box and wall finish. Actual fit depends on box style, plaster allowance, device strap, and installation conditions.
- MaterialSteel box cover type, exact finish not confirmed from source reviewed
- Device OpeningSingle duplex receptacle
- Box Size4 in square (approximately 102 mm square)
- Raised Depth3/8 in (approximately 10 mm)
- BrandsVista
- Stock in Elmira22
- Stock in Flesherton27
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- Elmira area delivery: Tuesday
- Flesherton area delivery: Thursday
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Delivery charges may apply outside regular local routes, for smaller orders, or for oversized and heavy items.
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