The Insteon Plug In Power Line Noise Filter 1626-10 is a power line noise filter designed for use with Insteon smart home systems. Made by the brand Insteon. It is a single plug-in filter that helps to reduce power line noise and improve the performance of connected electronics in a smart home setup. With its specific design for Insteon systems and origin from China, this power line noise filter enhances the functionality of a smart home setup by ensuring a stable and reliable power supply for connected devices.