I would buy a Porter Port before I bought Maestro duplex receptacle.
The Maestro starts out as a Cooper BR20 duplex outlet. At Lowe’s, $3.47
https://www.audioasylum.com/messages/tweaks/202332/re-impressions-of-the-furutech-gtx-d-r-outlet-non...
https://www.lowes.com/pd/Cooper-Wiring-Devices-20-Amp-125-Volt-Brown-Duplex-Electrical-Outlet/100005...
http://www.cruzefirstaudio.com/maestro_outlet.htm
OP,
A non breakable nylon duplex plate will work just fine.
Jim
The Maestro starts out as a Cooper BR20 duplex outlet. At Lowe’s, $3.47
https://www.audioasylum.com/messages/tweaks/202332/re-impressions-of-the-furutech-gtx-d-r-outlet-non...
https://www.lowes.com/pd/Cooper-Wiring-Devices-20-Amp-125-Volt-Brown-Duplex-Electrical-Outlet/100005...
http://www.cruzefirstaudio.com/maestro_outlet.htm
OP,
A non breakable nylon duplex plate will work just fine.
Jim