Gerber Plumbing Fixtures has added a dual flush toilet to its Logan Square Collection. The high-efficiency, two-piece toilet features two buttons on the top of the tank to dictate the flush rate: one flushing 1.1. gallons per flush (gpf) for liquid and one flushing 1.6 gpf for solid. It is WaterSense certified for its contributions to water conservation. The Logan Square Dual Flush toilet has an elongated rim for comfort and a fully glazed trapway. It is available in White and Biscuit. The company, in addition to the standard model, also offers an ADA-compliant ErgoHeight bowl. Both the standard and ErgoHeight options are installed with a 12-in. rough-in.