Kohler Co. Manufactures Symbio Bath with Left Corner Alcove, K-1313-0. Kohler Co. Is an ISO-9001 certified manufacturer of Bathroom Suites, ensembles and other toiletries. This Symbio Bath with Left Corner Alcove comes in white colour having faucet deck and nailing flange. It is also provided with optional removable apron which ensures easy maintenance and easy installation.