The X10 PRO Wired-In Noise Filter (XPF) is a 20A, 3-wire device designed by X10 to improve powerline networking in home environments. With its X10 smart home protocol compatibility, this model (XPF) is specifically designed to work with X10 products for optimal powerline conditioning. The XPF is an essential component for those looking to enhance their home networking and connectivity, ensuring a more reliable and stable connection for their devices.