Replacing faucet aerators (from 2.2 gpm to 1.0 gpm) or using water savers on showerheads (from 2.5 to 1.5 gpm) are the most affordable components of a water conservation program for multi-unit housing, commercial or institutional buildings. NEOPERL® products can help reduce water usage by 30% or more and earn LEED™ points towards building certification (LEED™ is a registered trademark of the U.S. Green Building Council). NEOPERL, Inc. Circle 352.