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Recessed Soap Dish (Rear Mounted) is formed of 16 gauge 18-8 alloy stainless steel, type 304. Unit is one piece drawn construction with beveled trim and embossments for air circulation. All exposed surfaces are No 4 satin finish. Back of soap dish has two (2) welded on 1/4-20-UNC-2B internally threaded posts that accepts threaded rods with washers and nuts (supplied). Back plate is die-formed of 11 gauge galvanized steel and reversible for shallow or deep wall installation.