Fills the gap between 18 and 14 AWG for a more permanent antenna without the higher cost and weight of 14 or 12 AWG. Fabricated and factory spooled on large reels, making it run close to straight for antenna work. 504 joins 501, 502, and 503 as the longest lived performers in any environment in the antenna business. Price is per foot.   Specifications Wire Type Solid copper-clad steel (30%) Wire Gauge 16 AWG Jacket N/A Break Strength 381 lbs