http://tinyurl.com/ljna6jk
Parts Express Cable TV In-Line Coaxial Surge Protector
Unique Patented In-Line� Coaxial Gas Tube Lightning Surge Protection
Designed for HFC or FTTC Broadband Network application
Transparent To Analog/Digital Bi-directional Signal Transmission
Essential For DSS Type Wireless Applications
Provides Lightning Surge Protection For Customer Premises