Essential Certified Series Tier1 48,000 Grain High Efficiency Digital Water Softener

Price $599.99
Availability: In stock
  • Includes exclusive NSF Certified electronic control valve with five year warranty.
  • 48 hour memory back-up
  • NSF Certified fiberglass pressure tank and high density polyethylene salt tank
  • WQA Gold Seal Approved cation exchange resin
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The Essential Certified Series Water Softener by Tier1 is here to help alleviate dry skin, hair, and scale in pipes due to hard water. The Tier1 Essential Certified Series WS-165-150 features piston proven seal and spacer technology, and an easy-to-use LCD display showing time of day, mode, and gallons remaining. Quick connect fittings on the brine line, drain line, and included power cord, make for fast and easy installation. Its unique precision turbine meter is incorporated in the system bypass valve saving over 4 feet of floor space. We have the solution for your hard water problems. Click here for the user manual.

Our Tier1 Essential Certified Series Water Softener

Grains: 48,000
Mineral Tank Dimensions: 10" x 54" (without control valve)
Mineral Tank Dimensions: 10" x 61.5" (with control valve)
Brine Tank Dimensions: 33" x 18"
Cubic Feet of Resin in the Mineral Tank: 1.5 cubic feet of Cation Resin 8%
Control Valve: Automatic Bypass Valve

Grains of Hardness

When a water softener is referring to 'grains' it's talking about how many grains of hardness it can process before regenerating. Grains of hardness processed depends on how large your household is, as well as how hard your water actually is.

For example, a family of 4 with 20 grains of hardness: Your family of 4 will use approx. 300 gallons of water per day (4 people x 75 gallons per person). Since the water has 20 grains of hardness, you'll need to treat 6,000 grains of hardness per day (300 X 20). If you give the softener its full dose of salt, 15 lbs. per cubic foot, you can go about 7-1/2 days before regenerating (45,000/6,000).

Frequently Asked Questions

How much is the Max. Hardness of the Water (in GPG)? During set-up, the customer customizes the regeneration cycle based on their water hardness level

How much is the max. Clear Water Iron Removal (ppm)? An iron filter is recommended for iron levels above 3ppm

Is it Demand Initiated or Timed? The WS-165-150 is demand initiated, the control valve features a water use probe (impeller), which measures water use

How long does the Regeneration Cycle take? Two hours

Will I experience a disruption in water service during the Regeneration Cycle? No, there will not be a disruption to water service during this time. Most of our customers schedule the Regeneration Cycle for 2:00 AM, ensuring there are no conflicts. While the factory setting is set for 2:00 AM it can be adjusted in the programming menu to suit any preferred time.

How much salt do I use in the 130L square brine tank? We recommend using no more than three 40 pound bags of water softener salt

What is in the mineral tank? The system arrives to you pre-filled, ready for use with Cation Exchange Resin 8%

Does it have an indicator to notify me about low salt? No

What if my home is plumbed with PEX or CPVC supply tubing? Homes plumbed with PEX or CPVC supply tubing may require the use of compression fittings, such as the Sharkbite® brand. Due to varying sizes and configurations, compression fittings are not included with the water softener. If these fittings are required, they can be purchased for a reasonable price at most hardware stores

Package Qty 1
Used In Brands Tier1
Manufacturer's Id WS-165-150-BLK
UPC 641945747720
Media Cation Resin
Primary Filter Media Ion Exchange Resin
Filter Life (months) 120 months
Operating Pressure (psi) 20 - 125
Operating Temperature (°F) 40 - 100
Flow Rate (gpm) 11.10
Fitting Type FPT
Fitting Size (inches) 3/4 inch
Color Black
Power Requirements Power Cord
Tank Dimensions Mineral tank (without control valve): 10 x 54 inches, Brine tank: 33 x 18 inches
Certifications NSF/ANSI Standard 44
Reduction Class Hardness
Includes Mineral tank, brine tank, cation resin media, LCD display valve
Primary Filter Media Ion Exchange Resin

The TIER1-WS-165-150-BLK is comparable with the following part numbers


Installation Guide


  1. Read the complete installation guide for detailed instructions on installation steps and included parts list.

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