Scale Prevention System | Water Heater Pros

Simple Upgrade Will Extend Life

ScaleRX protects your water heater from limescale buildup and keeps it running efficiently. It requires no power supply, batteries, chemicals, or filters. ScaleRX uses a patented Turbulent Galvanic Polarization (TGP) system to disrupt the formation of limescale crystals on water heater elements. In side-by-side comparison testing, ScaleRX was four times more effective than the leading electronic scale device. ScaleRX is easy to install and maintenance free. Now available in 3/4 inch & 1 inch sizes.

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Minimize Limescale

No additional plumbing or electrical needed! ScaleRx is a quick, easy retrofit using the existing plumbing. Mount it to the water heater and it starts to work immediately. With the reduction of limescale build-up, your water heater will gain extended life and better performance. 

The Problem: Hard Water Causes Extreme Scale Build-up

A faucet full of lime scale is unappealing to the eye, but it can also be a warning sign for a few things. First, if you have an abundance of buildup, it’s a surefire sign that your home is operating on hard water, which isn’t ideal for cleaning, showering, etc. More importantly, if scale is building up on the outside of your fixtures, just imagine what it might look like within your plumbing! Buildup can clog pipes and cause water usage to skyrocket.


What is Limescale

Limescale is a hard chalky deposit, consisting mainly of calcium carbonate (CaCO3), that often builds up inside kettles, hot water boilers, and pipework, especially that for hot water. It is also often found as a similar deposit on the inner surfaces of old pipes and other surfaces where "hard water" has evaporated.

What to Know About ScaleRx

  • Extends the life and efficiency of new and existing water heaters

  • Reduces and prevents limescale build-up by 76% per IAPMO R&T

  • Easy-to-install & maintenance-free

  • For indoor or outdoor use

  • No electricity required

  • Environmentally friendly, chemical-free

  • Does not affect water pressure

  • Adapts easily for PEX and other pipe types

  • 12-Year Limited Warranty

  • Available in 3/4 in. & 1” in. sizes

Scale Rx Warranty

American Valve warrants, to its initial purchaser only, that its ScaleRX™ Ion Polarization System products which are delivered to the initial purchaser will be the kind described in the order or price list and will be free from defects in workmanship or material for a period of twelve (12) years from the date of delivery to you, our initial purchaser. Should any failure to conform to this warranty appear within twelve (12) years after the date of the initial delivery to our initial purchaser, American Valve will, upon written notification thereof and substantiation that the goods have been stored, installed, maintained and operated in accordance with American Valve’s recommendation and standard industry practice, correct such defects by suitable repair or replacement at American Valve’s own expense. If any ScaleRx™ Ion Polarization System alleged to be defective, is returned to our factory at Greensboro, NC, it will be examined and, if found to be defective under the warranty, it will be replaced at no charge. Call Us 916-344-4500