The MK K181WHI is a single gang face plate that accommodates a standard 25mm x 50mm Euro module. This combination comes bundled with a single K5887WHI Telephone socket outlet suitable for both RJ11 and RJ12 jacks.
RJ11; 4 wire
RJ12; 6 wire
1 Gang - Aperture Size: 25 X 50MM
Minimum box depth 35mm