Corning Corded Distributed Single Jack Micro Filter. (DSL Filter).
3 Micro Filters X $10 brand-new (sealed in its bag).
Condition: brand-new. Compatible devices: Personal Computer, Modem, Phone. (ensures optimized DSL connections). Brand: Corning. Installs Easily between Wall and Phone Device. 3" Modular Telephone Cord. ____________________________________ https://www.amazon.ca/Filter-Conditioner-Coupler-Improved-Clarity/dp/B00V4S34O6