Aqua-Rex, a physical water softener alternative, published the results of performance tests carried out by IAPMO R & T Labs under the new test protocol IGC 335-2018 known as the Rapid Scaling Test. IAPMO reports Aqua-Rex reduced scaling by 83% in Las Vegas water heated to 180o F for 23 hours. IGC 335 is the first U.S. test standard for Physical Water Conditioners (PWCs).

Aqua-Rex uses ultra-high-frequency radio waves that travel in the water to cause scale to form in suspension in the water instead of encrusting surfaces. Its technology has been widely used for more than 20 years in the U.K., and now it has IAPMO performance certification. Aqua-Rex is a fit-and-forget product; once installed, it does not need maintenance or servicing and is warrantied for 20 years. Visit for more information.