Kohler Co. Manufactures Apron for Symbio Bath or Whirlpool for Left Corner Installation, K-1345-0. Kohler Co. Is an ISO-9001 certified manufacturer of Bathroom Suites, ensembles and other toiletries. Apron for Symbio Bath is applicable for K-1313 Symbio 5 feet Bath and K-1315-H Symbio 5 feet Whirlpool. It comes in white colour.