RJ11/RJ45 Cover, For Raceway Width x Height 4 in x 2 in, Series CableSmart 40N2, Material of Construction Non-Metallic, Color Ivory, Length (In.) 4 1/2 in, Width (In.) 1 7/8 in, For Use With 40N2 Wall Source Box Raceways, Features For Mounting One or Two Keystone Device Modules, Has One Opening and One Knockout, Standards File E90377 Guide RJYT, File E90378 Guide RJTX, Meets Article 388 of NEC and Meets Section 12-600 of CEC, UL and cUL Listed, For Raceway Height 2 in, For Raceway Width 4 in