JEFA Tech Low Loss 400 Coax - 500 ft. Reel 50 Ohm Low Loss Coax .405" outer diameter (same as -400, RG-8, RG-213) - connectors for these types of cable will fit Polyethylene Jacket - provides full waterproofing and UV Protection Solid Copper Clad Aluminum Center Conductor Double Shielded for low loss and interference rejection