Twin earths are fitted as standard to facilitate high-integrity protective connections, as per BS 7671 regulations.
BG Nexus Metal 2 Gang 13A Switched Socket Brushed Steel (Grey Inserts)
G&H VC310 Victorian Plate Polished Chrome 2 Gang Double 13A Switched Plug Socket
MK Alloy Polished Chrome 2 Gang Switched Socket 13A Black Insert K5347POCUCB
BG Evolve PCDMB22B Matt Black 2 Gang 13A Switched Socket-Black Insert G9
BG Nexus White USB & USC 2-Gang 13A Double Wall Socket 822UAC
