The Quality Excelsus Brand DSL Phone Filter Set Z-Blocker Z-330PJ includes three filters specifically designed for DSL connections. Made by the trusted brand Excelsus, these filters are compatible with DSL models and help improve network performance by reducing interference and signal noise. Perfect for optimizing your home or office internet connection, this set of filters ensures a stable and reliable connection for all your networking needs.

Never used. Original Package has been opened and taped closed.