Experience crystal-clear communication with the Pace Americas DSL Filter, designed specifically for single line phones. Model LFT4-1, this filter is a practical solution for enhancing your phone's performance by blocking unwanted noise and ensuring a better call quality. Each pack includes three units, making it an economical choice for both home and office use.Crafted with a flat cable design to save space and ease cable clutter, these filters boast a 6-inch cable length for convenient setup. Compatible with the LFT4-1 model, these DSL/Phone (RJ-11) filters are a reliable addition to your tech toolkit, manufactured in China with a focus on quality and durability. There is 3 single line filters and 2 double line filters.