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Rheem® PREFERRED Platinum™ Water Softener
42,000 Grain Large-Capacity System With WiFi Technology
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The Rheem® PREFERRED Platinum™ 42,000 Grain WiFi Water Softener is ideal for all household sizes and provides soft, clean water throughout your entire home. You will also enjoy peace of mind with the free iQua™ water management smartphone app. The iQua™ app enables you to keep an eye on critical alerts such as low salt* level and continuous water flow events, as well as providing valuable information around your household water usage over time. The app also allows you to monitor, control and manually regenerate your water softener and turn off your home’s water with an optional shut-off valve. Plus, the built-in Rheem® Learning Technology optimizes overall softening efficiency by learning and adapting to your household water use.
* For peak performance in your high-efficiency Rheem water softener, evaporated salt pellets or solar salt crystals with less than 1% impurities are recommended. We do not recommend using any kind of block salt in the Rheem water softeners. Learn more.
Water Softener Savings
- Saves up to $558 per year in household costs
- Saves up to 24% on water heater electricity costs by removing scale build-up and improving efficiency*
- Uses up to 40% less salt than traditional water softeners**
- Uses less than $5 per year in electricity costs**
- Cycles less, and uses less than $10 of water per year**
Rheem® Learning Technology
Learns your home’s water usage patterns to optimize salt consumption, provide on-demand soft water for your home, and maximize overall softening efficiency.
Features
Simple Remote Water Management
Get water usage analytics, salt settings and alerts, continuous flow alerts with your mobile device using the iQua™ remote water management app. Add remote water shutoff capabilities with the optional Rheem PREFERRED™ Series Water Shut-off Valve.
Lasting Quality
Durable, high-impact salt storage with an internal double-lined mineral tank will not deteriorate, rust or corrode. The tanks are guaranteed for 10 years.
Maximum Water Pressure
Ultra high flow valve maintains water pressure in up to 1-1/4″ plumbing and homes with multiple bathrooms.
Soft and Clean Water
The built-in sediment filter keeps sediment out of your plumbing with no filter replacements needed.
Easy Salt Loading
Large tank opening with hinged cover makes loading salt fast and easy.
Ideal for All Household Sizes
Large 42,000 grain capacity ensures soft water is available when you need it for large households.
Low Salt Monitor
The iQua™ water management app and the water softener display flashes “Low Salt Level” to let you know when it’s time to add salt.
Eliminates Unsightly Stains
Removes clear water (Ferrous) iron that causes reddish-brown stains to form on toilets, showers and sinks
Made in the USA
Rheem® Water Softeners are designed, engineered and manufactured right here in the USA.
Backed with Industry-Leading Warranties
1-year on parts and labor (extendable to 5-years***), 3-years on electronics, 10-years on tanks.
*Based on findings from the Water Quality Association soft water benefits study.
**Based on the manufacturer’s internal laboratory testing.
***The 1-year can be extended to five years with the use of Rheem Cleaner – see warranty page for more information.
Rheem® PREFERRED Platinum™ Water Softener with WiFi Technology
Tech Specs
| Model | RHW42 |
|---|---|
| Model Code | RH42 |
| Rated Softening Capacity (Grains @ Salt Dose) | 42,400 @ 16.3 lbs. |
| Rated Efficiency (Grains/Pound of Salt @ Minimum Salt Dose) | 5,010 @ 2.5 lbs. |
| Rated Service Flow Rate | 9.9 gallons per minute (gpm) |
| Amount of High Capacity Ion Exchange Resin | 1.20 cu. ft. |
| Pressure Drop at Rated Service Flow | 12.0 pounds per square inch (psi) |
| Intermittent Flow Rate @ 30 psi pressure drop | 22.4 gpm |
| Water Supply Max. Hardness | 140 grains per gallon (gpg) |
| Water Supply Max. Clear Water Iron | 11 parts per million (ppm) |
| Water Pressure Limits (min. / max.) | 20 – 125 psi |
| Water Temperature Limits (min. / max.) | 40 – 120 °F |
| Minimum Water Supply Flow Rate | 3 gpm |
| Maximum Drain Flow Rate | 2.0 gpm |
| Dimensions: | Height: 48″ Top View Width: 15-1/4″ Top View Depth: 20-1/2″ In and Out: 3-3/4″ Base to In and Out: 41-3/4″ |
Extend Your Warranty and the Life of Your Softener
A little maintenance goes a long way to ensure your water softener maintains optimal performance. Adding Rheem® Water Softener Cleaner every four months can make all the difference. Plus, with regular use, you can extend your 1-year parts and labor warranty up to 5 years.
More About Rheem Softener Cleaner
Owner Resources
Find answers to all of your water softener installation and maintenance questions
Rheem® PREFERRED Platinum™ Installation Guide
Need help installing your water softener? Follow this guide.
View Guide
Rheem® PREFERRED Platinum™ Product Manual
Use the product manual to learn everything you need to install, operate and maintain your softener.
View Product Manual