: can i have your thoughts on the gerber ultra flush vs. kohler wellworth?

Jon,
A better comparison would be to the Kohler K3458, Wellworth "Pressure Lite" toilet and the Gerber 21-312 Ultraflush. Both of those toilets are pressure assisted. Either of these would work fine.

The K3422 Kohler Wellworth is not pressure assisted and is not included on the toilet report. It uses the 2" flapper, gravity style. Until they improve this model, it's not included on my list.

• The ones that work. A report on low flow toilets.