ENERLITES 975501-C Screw Cap Floor Box Cover - Watertight 4in Outlet

In this review of the ENERLITES 975501-C screw cap floor box cover, the bottom line is simple: it is a durable, weather-resistant floor outlet cover intended for homeowners and contractors who need a neat, code-compliant in-floor receptacle solution. The reviewer found the unit useful where a tamper-resistant receptacle and a corrosion-resistant brass cover are required, and especially where the outlet may be exposed to occasional moisture or foot traffic. It is best when used with the specific Enerlites flanges, PVC boxes, or adapters listed by the manufacturer, and it comes with a receptacle included for quick installation when paired with the correct junction box.

Key Features

• Floor-mounted outlet: Provides a flush, in-floor receptacle solution that works in both commercial and residential locations for a tidy power access point.
• Watertight gaskets: Keeps the outlet protected from moisture and incidental water exposure when the screw cap is closed.
• Corrosion-resistant brass: Durable brass cover and hardware resist weathering and wear to extend service life in high-traffic areas.
• Tamper-resistant receptacle: Built to meet 2011 NEC Article 406.14, providing added safety for homes and public spaces that require childproofing.
• Multiple floor materials: Designed to install in hardwood, tile, carpet, marble and granite floors for versatile placement options.
• UL listed: Meets recognized safety standards, giving installers confidence the product has been evaluated for use.

Who It's For

This product is aimed at contractors, remodelers, and homeowners who need a finished, in-floor power solution that blends with finished flooring while offering tamper resistance and watertight protection. It is a practical choice for living rooms, hotel lobbies, offices, or commercial spaces where an unobtrusive outlet is required.

Those who should look elsewhere are anyone who does not have the required junction box or compatible flange/adapter on hand, since the unit is compatible only with Enerlites 975509 flange, FB02 PVC floor boxes, or specific adapters 975518-C, ENLC00LR, and ENLC001. If unpredictable fit or nonstandard in-floor boxes are present, verify compatibility before purchase.

Pros & Cons

Pros

• Durable brass cover and hardware provide long-term corrosion resistance and a premium appearance.
• Includes a tamper-resistant receptacle that meets NEC 2011 requirements for safer use around children.
• Watertight gaskets and UL listing increase confidence for installations exposed to foot traffic and occasional moisture.
• Designed for multiple finished floor types, making it versatile for different projects.

Cons

• Compatibility is limited to specific Enerlites flanges, PVC boxes, and adapters, so additional parts are often required.
• Some customers report fit and functionality issues when their in-floor box or layout deviates from the supported configurations.

Specifications

Product	Floor box screw cap cover with receptacle
Cover diameter	4 in (101.6 mm)
Receptacle rating	20A tamper-resistant outlet
Material	Weatherproof, corrosive resistant brass cover and hardware
Compatibility	Requires Enerlites 975509 flange or FB02 PVC boxes; adapters 975518-C, ENLC00LR, ENLC001 for slab
Listings	UL listed; meets 2011 NEC Article 406.14
Mounting	Junction box required (not included)

Our Verdict

The ENERLITES 975501-C is a solid choice for installers who need a tamper-resistant, watertight floor outlet with a durable brass cover and UL listing. It delivers good value when paired with the correct Enerlites flange or floor box, but buyers must confirm compatibility with their in-floor junction box to avoid fitment issues.

Frequently Asked Questions

Does the cover come with a receptacle?
Yes, the unit includes a 20A tamper-resistant receptacle as part of the package.

Can it be used in a concrete slab?
Yes, but concrete slab installations require specific adapters such as 975518-C, ENLC00LR, or ENLC001.

Is the junction box included?
No, a junction box is required for mounting but is not included with this cover; use the compatible Enerlites flange or PVC box.