CTS In-line Coupler (RJ11)

4-conductor in-line coupler. Use this 4-wire coupler as an inline device for connecting two RJ-11 modular plug-ended line cords. Works great for extending modular circuits without the hassle and expense of hard-wired connecting blocks. They snap together in seconds and are ideal for business telephones systems.

Modular Coupler  (Female RJ11 on each end)