Ivory Modular Telephone Duplex Jack Adapter, RJ11-4C6P, Phone Line.

Features:

• Duplex telephone adapter converts a single outlet into two outlets.
• 4 conductors 
• High impact plastic
• Color: Ivory
• 1 pc.

• Free shipping cost to lower 48 States via USPS.  Shipping cost will be applied outside 48 states, APO and international.  Please email before buying.