Kohler. The manufacturer’s latest toilet technology is the new precision-engineered Class Six flushing. The unit optimizes the power of jet action to remove bulk waste with 100% of the flushing water being fed through the rim, blending bulk removal and bowl washing. The technology is available as 1.6 gallons per flush or high efficiency 1.28 gpf. 800.456.4537. www.kohler.com.