The Hy Power GU 6-160-5KW is a 1:1 Guanella current / choke balun with an SO239 connector for coupling your coax. This balun is rated 98% efficient, or better, on all HF bands. The balun is superior to the beaded baluns that use higher permeability ferrite. The power handling capability of this balun is phenomenal. It is conservatively rated at 10 KW on 160 meters, 5 KW from 80 to 10 meters and 3.5 KW on 6 meters. These ratings are good for up to 2:1 SWR.
The MIL-SPEC transmission line used to make the balun uses: silver clad copper center conductor, silver covered shield, solid Teflon dielectric with a voltage rating of 1900 rms volts and temperature range of -55 to +200 degrees centigrade. The balun is enclosed in a UV nema rated enclosure. The hardware is stainless steel and will not rust! There are also two drain holes in the bottom of the enclosure should any water migrate its way inside the enclosure.