One of the major advantages of using zinc is its great durability. This shower boasts a smooth, sculptural frame, tinted a dark slate gray. The PANAME ANTHRACITE shower comes with graphite gray thermo-lacquering (high-temperature firing with powder pigments). This surface treatment process creates an additional layer of anti-corrosion protection and guarantees protection over the long term. All of the colors in the RAL color chart are available upon request.