[1 Rugged steel channels protected by corrosion-resistant PVC! Cal’ PVC-Coated Steel Strut « Channels cold formed from hot-rolled pickled and oiled strip steel = Nominal .015" (15 mil) PVC coating # PVC coating available in your choice of blue. white or gray standard colors = Custom colors also available on request iz = Sold in 10-ft. (3.048m) lengths with standard length tolerance of + 14" (3.18mm) Conduit & Fittings — Cal* Corrosion-Resistant Conduit Systems « Choose between standard 124" (41.