on the finishes 6021-ast, what about the 4 caps; it only lists 3 and what do the initials stand for. On 6020-ast, what do the 4 caps come in. Thank youA. The Designers Fountain 6021-AST comes with one Distressed Bronze, one Sandstone, and one European Gold. The 6060 comes with 4 assorted caps including Pewter, Distressed Bronze, Polished Brass and White.