The Lot of 3 Pace LFT4-1 DSL Filter Telephone PC Line Filter Phone Internet is a set of three filters designed to improve the quality of your phone and internet connection. Made by the brand Pace, these filters are specifically compatible with the Pace LFT4-1 model. The DSL filter phone PC is an essential component for enhancing your computer's networking capabilities, ensuring a smoother and more reliable connection for your phone and internet usage. These items are in new old stock condition and are factory sealed. See pictures for details, message with any questions.