In my experience researching plumbing fixtures the last couple of months, it seems to be relatively easy to find water efficient toilets these days, but much more difficult to find faucets that are low-flow - at least for residential applications. There are plenty commercial fixtrues available that meet the requirements. I spent hours researching and trying to find low flow fixtures that would meet our esthetic goals with little or no luck. Although there are products available, I was trying to select compatible or matching faucets, shower heads and control valves for two different bathrooms. I had almost given up on the low-flow aspect until Kevin drew his line in the sand and demanded that we do better. I decided to stay with the fixtures we had selected for esthetic reasons and research switching the aerators. I finally e-mailed the technical support for both Grohe and Toto to request low-flow aerators. In both the case of Toto and Grohe, they were able to supply a 1.5 GPM low flow aerator for the faucet, no problem. (Most standard fixtures meet a 2.2 GPM flow rate). Neither Toto or Grohe advertised or had information on their websites about their low flow aerator options, which surprised me. My guess is that there is currently not the demand for this option, but this will be changing in the future. We will likely purchase and use the 1.5 gpm aerators for the kitchen sink, but will inevitably change out the aerators to a .5 gpm aerator in the bathroom lavatories. We'll leave the tub alone, as lwering th flow rate simply increases the length of time it will take to fill the tub for a bath.