A PVC sink drain tube split spiral like and wrapped around the mast
works good. The top flange holds it in place
greased and protected from dust and dirt with a rubber pipe repair boot.
No effects from sunlight here at 6200' elevation
after 3 years. The tower was a Rohn 25 and Cubex 5 band 2 el quad . The
rotor was a hy gain mounted on a plate inside the
tower. Alignment wasn't a problem and never any rust or binding
73
Spencer
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