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Typical GFCI (under left image), SmartlockPro GFCI (under right image).
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The Leviton 15-Amp SmartlockPro Slim GFCI offers ground fault protection in bathrooms, kitchens and any area of the home near a water source. Designed to help protect from electrical hazards in homes and commercial settings, it combines professional grade lockout action with the slimmest profile on the market. The Leviton SmartlockPro Slim GFCI is also available in a tamper-resistant model to help protect children from electrical hazards in homes and childcare facilities. The 15-Amp tamper-resistant model is the Leviton X7599 and is available on Amazon.

Slim, Sleek Build for Easy Installation

The SmartlockPro GFCI boasts a reduced depth that makes it easier to install in any electrical box, even a shallow one. Compared to other GFCIs, its slim size provides up to 25 percent more space in the wallbox, and it mounts flush to the wall with minimal protrusion for a sleek, finished look.

Simple Wiring Options

Both back and side wire capable, the SmartlockPro GFCI terminals allow for easy wiring options. Back wire clamps provide visual indication of proper wire seating, eliminating guesswork.

Built to Last with Advanced Technology

Designed to provide years of reliable performance, the SmartlockPro GFCI withstands high torque, resists wire pullout and has a standard brass self-grounding clip. Its patented lockout feature automatically tests the GFCI every time the RESET button is pushed in. The GFCI will not reset if its circuit is not functioning properly. Additionally, its trip threshold meets or exceeds UL requirements for tripping time, and its electronics design provides strong resistance to electrical surges and over-voltages.

Compatibility and Warranty Information

The SmartlockPro GFCI is compatible with all Decora devices and wallplates. It is backed by a manufacturer's two-year limited warranty.

What's in the Box

SmartlockPro Slim GFCI with a standard Decora wallplate and installation instructions.

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15-Amp SmartlockPro Slim GFCI
At a Glance:
  • Reduced depth makes for easier installation in any electrical box
  • Terminals allow for easy wiring options; back and side wire capable
  • Withstands high torque and resists wire pullout
  • Automatically tests the GFCI every time the RESET button is pushed in. The GFCI will not reset if the GFCI circuit is not functioning properly
  • Tamper-resistant Leviton X7599 model available to help protect children from electrical hazards
  • Two-year limited warranty


  • Automatically test the GFCI every time the Reset button is pushed in. The GFCI will not reset if the GFCI circuit is not functioning properly.
  • Reduced depth of SmartlockPro Slim GFCI makes it easier to install in any electrical box, even shallow ones.
  • Terminals allow for easy wiring options – back and side wire capable.
  • Trip threshold meets or exceeds UL requirements for tripping time.
  • Limited 2-year warranty
  • Automatically test the GFCI every time the Reset button is pushed in. The GFCI will not reset if the GFCI circuit is not functioning properly.
  • Reduced depth of SmartlockPro Slim GFCI makes it easier to install in any electrical box, even shallow ones.
  • Terminals allow for easy wiring options – back and side wire capable.
  • Trip threshold meets or exceeds UL requirements for tripping time.
  • Limited 2-year warranty

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