











31,000 Grain Hybrid Water Softener System
The WHESFC4 is a hybrid water softener and whole home filtration system, removing hardness from your water and reducing chlorine taste and odor for better tasting water at every faucet. It flushes, cleans and drains itself automatically so there are no filters to change – ever. With a grain capacity of 31,000, the WHESFC4 is ideal for households of 1-5+ people.
Whirlpool water softeners are among the most salt-efficient units in the industry. The WHESFC4’s 6th Sense technology learns your water usage patterns and reduces waste by calculating the amount of salt and water your family needs. This means less salt to buy, carry, and remember.
- The WHESFC4 is a hybrid water softener and whole home filtration system; it reduces hardness and chlorine taste and odor – with no filters to change, ever
- 6th Sense technology learns your water usage patterns over time
- Demand Initiated Regeneration only uses the amount of salt and water you need, saving you money
- Ideal for households of 1 to 5+ people
- This water softener reduces up to 3 ppm of ferrous (clear water) iron
- Fully automatic electronic controls
- Power loss protection retains memory after an outage
- Includes a low salt level indicator light
- Includes a built-in, self-cleaning sediment filter
- Ultra high-flow valve connects with up to 1.25” plumbing
- Installation kit for DIY installations
- Space-saving, single-tank design
- Designed for city and well water applications
Family Size: 1 – 5+ people
Maximum Grain Capacity: 31,000
Salt Storage Capacity: 200 lbs.
Warranty:
The warranty on this unit is for 2 years on full parts and labor*, 3 years on the electronics, and 10 years on the tank.
*This unit’s 2-year full parts and labor warranty may be extended up to 10 years with use of Whirlpool Water Softener Cleanser (WHEC-WSC).
Product Attributes
- Rated Softening Capacity (Grains @ Salt Dose): 11,000 @ 2.6 lbs.; 24,700 @ 7.8 lbs.; 31,100 @ 13.4 lbs.
- Rated Efficiency (Grains/Pound of Salt @ Minimum Salt Dose) 4,230 @ 2.6 lbs.
- Water Used During Regeneration @ Minimum Salt Dose 4.3 gal. / 1,000 grains
- Total Water Used Per Regeneration @ Maximum Salt Dose 54.7 gallons
- Rated Service Flow Rate 8.0 gpm
- Amount of High Capacity Ion Exchange Resin 0.98 cu. ft.
- Pressure Drop at Rated Service Flow 6.5 psig
- Water Supply Max. Hardness 120 gpg
- Water Supply Max. Clear Water Iron 3 ppm*
- Water Pressure Limits (min. / max.) 20 – 125 psi
- Water Temperature Limits (min. / max.) 40 – 100 °F
- Minimum Water Supply Flow Rate 3 gpm
- Intermittent Flow @ 15 PSI 13.7 gpm**
- Maximum Drain Flow Rate 2 gpm
- Salt Storage Capacity 200 lbs.
- Rated Capacity at Chlorine Concentration*** of: 0.50 ppm (2,280,000 gal.§); 0.75 ppm (1,520,000 gal.§); 1.0 ppm (1,140,000 gal.§); 1.5 ppm (760,000 gal.§); 2.0 ppm (570,000 gal.)
*Capacity to reduce clear water iron is substantiated by laboratory test data. State of Wisconsin
requires additional treatment if water supply contains clear water iron exceeding 5 ppm.
**Intermittent flow rate does not represent the maximum service flow rate used for determining
the conditioner’s rated capacity and efficiency. Continuous operation at flow rates greater than the service flow rate may affect capacity and efficiency performance.
***Typical residential chlorine concentration is 0.5 to 1.0 ppm.
§ From independent laboratory test data.
This system conforms to NSF/ANSI Standards 42 & 44 for the specific performance claims as verified and substantiated by test data.
Depth | 20 1/2 in. |
Width | 15 in. |
Height | 48 in. |
Electrical Requirements
Transformer Included.

Installation and Operation Manual
View HereEliminate Hard Water Effects with a Whirlpool Water Softener

Extend your warranty to 5 years with cleanser purchase
Extend Warranty
Sign up for scheduled reminders to add cleanser
Remind MeThe Easy Way To Learn What’s in Your Water
Check your water quality before committing to a treatment system. Order a free test strip to get started.
Request a Test Strip