GFCI Outlet 20 Amp Self-Test TR Receptacle - Slim 6 Pack

Our review of this 6 pack GFCI outlet finds it best suited for homeowners and installers who prioritize safety and reliability in wet or high-risk areas. The single biggest reason to buy is its patented self-test every 5 seconds, which offers continuous verification that the device will trip on a ground fault - a level of vigilance well beyond most standard outlets. Installation is straightforward for anyone familiar with basic wiring, and the slim design helps fit tighter wall boxes while still providing robust protection.

Key Features

• Dual Protection System: Twin solenoid and double SCR design provide an added layer of protection and extend the expected service life of the GFCI device by maintaining consistent trip performance.
• Patented Self-Test: Automatic self-testing every 5 seconds ensures the unit checks its readiness far more frequently than the typical industry cadence, helping avoid undetected failures.
• Fast Trip Response: Cuts power in about 0.025 seconds on a ground fault, delivering near-instant interruption to reduce shock risk.
• Durable Construction: Made from high-impact resistant thermoplastic and endurance-tested beyond UL requirements for long-term reliability in demanding environments.
• Tamper Resistant: Integrated shutter system prevents foreign objects from being inserted, improving safety in homes with small children.
• UL Certified and Support: Meets UL943 and UL498 standards and includes 3 years of product support for peace of mind after installation.

Who It's For

This GFCI outlet is ideal for homeowners upgrading kitchens, bathrooms, laundry rooms, garages, or outdoor protected locations who want continuous self-monitoring and faster-than-normal trip performance. Electricians and DIY installers who value devices that exceed minimum endurance and testing standards will also appreciate the durability and safety features.

It is less suitable for buyers who need color-matched or decorative faceplates beyond the included matte white, or for installations constrained to the absolute shallowest wiring boxes where even a slimmer-than-average device might still be tight. Those seeking integrated surge-only solutions should look elsewhere.

Pros & Cons

Pros

• Frequent self-test every 5 seconds provides continuous assurance the device will operate when needed.
• Robust dual protection system and fast 0.025 second trip response reduce shock risk.
• Durable thermoplastic housing and extended endurance testing increase long-term reliability.
• Tamper-resistant shutters improve safety in homes with children.

Cons

• Some users report mixed functionality in rare cases, so occasional unit failures are possible despite the self-test feature.
• Although slimmer than many competitors, a few customers still found it thicker than some box-store units, which may affect fit in very shallow boxes.

Specifications

Our Verdict

This 20 Amp self-test GFCI is a smart buy for homeowners and professionals who want continuous, fast-acting ground fault protection and a durable, tamper-resistant design. It represents solid value given the frequent self-test, dual protection system, UL certification, and three-year product support, though buyers should verify box depth if space is extremely limited.

Frequently Asked Questions

How often does the GFCI self-test?
The unit performs a patented self-test every 5 seconds to verify readiness.

Does it include surge protection?
Yes, the outlet includes 6 kV surge protection as part of its safety features.

Is this outlet tamper resistant?
Yes, it has a built-in tamper-resistant shutter system to prevent foreign object insertion.