Leviton 20 Amp 4-Way Preferred Toggle Switch, White R62-0CSB4-2WS - The Home Depot
zen21-zen22-zen23-zen24-4-way | Light switch wiring, 3 way switch wiring, Three way switch
15 Amp 120/277 Volt, Decora Rocker 4-Way AC Quiet Switch, Residential Grade... – Leviton
Leviton Decora 4/Way 15 Amp Switch, White | The Home Depot Canada
Wire-Free Dimmer and Switch Companions | Leviton
electrical - 4-way switch circuit with Leviton smart dimmers - Home Improvement Stack Exchange
Installing Aeon Labs micro dimmer on 4-way circuit - Connected Things - SmartThings Community
Installing Leviton Smart Switches on 4-way Circuit - Home Improvement Stack Exchange
ELEGRP Digital Dimmer Light Switch for 300W Dimmable LED/CFL Lights and 600W Incandescent/Halogen, Single Pole/3-Way LED Slide Dimmer Light Switch, Wall Plate Included, UL Listed, 1 Pack, Matte Black - Amazon.com
Two different 4-way wiring questions with LZW31-SN dimmer switches - Wiring Discussion - Inovelli Community
Leviton Decora 15 Amp 4-Way Switch - White R58-05604-2WS - The Home Depot