Strong Cation Resin for Hardness Reduction and Water Softening - 1 Cubic Foot

Strong Cation Resin for Hardness Reduction and Water Softening - 1 Cubic Foot

CAD $180.00
CAD $140.00
Part Number: 104134-40
In Stock
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Quantity Pricing
  • 2 - 5
  • 98.00
  • 6 - 12
  • 84.00
  • 13+
  • 70.00

Detailed Description:

Strong Acid Cation / 40 Lbs Bulk Resin

A High Capacity Cation Exchange Resin for Domestic Applications (Hardness Reduction & Water Softening)

1 Cubic Foot of cation resin for refilling home water softeners

Our high grade cation softening resin is ideal for applications where the reduction of TDS or hardness is required or can be used as a pre-filter to prevent build-up of scale on sensitive equipment.


  • Maximum Recommended Flow: 1.0 GPM ( 3.79 LPM)
  • Estimated Capacity: Total 5600 Grains / or Approx 96000 PPM
  • Operation Temperature 40°F to 100°F (Maximum Temperature)
  • Maximum Pressure: 125 PSI
  • Total Weight: 45 lbs
  • Filter Media: Cation Resin
  • Filter Life: Approximately 10500 Gallons

Cation Exchange Resin Cartridge for Hardness Reduction , Softening your water by releasing Hydrogen (H+) ions or other positively charged ions in exchange for impurity cations present in the water.

The process involves passing water containing hardness ions, namely calcium (Ca2+) and magnesium (Mg2+) through a column containing a strongly acidic cation exchange resin in the sodium (Na+) form (i.e. the exchangeable cations are sodium). The calcium and magnesium ions are exchanged for an equivalent number of sodium ions. The resin, once exhausted, (i.e. all the available sodium ions have been exchanged) must be re-charged. This entails passing a solution containing a high concentration of sodium salts such as brine (sodium chloride) through the ion exchange resin - a process known as regeneration.

Commons Cations: Hydrogen (H+), Sodium (NA+), Potassium (K+), Calcium (CA+2), Magnesium (MG+2), Ferrose (FE+2), Ferric (FE+3)

Principal Applications

  • Softening - Potable Water
  • Food and beverage processing
  • Softening - Industrial


  • Efficient regeneration
  • Good kinetic performance
  • Low extractables


  • Coflow regenerated systems

Regulatory Approvals

  • Kosher Certified
  • Certified by the WQA to NSF/ANSI-61 Standard

Typical Packaging

  • 1 ft³ Sack
  • 25 L Sack
  • 5 ft³ Drum (Fiber)
  • 1 m³ Supersack
  • 42 ft³ Supersack

Typical Physical & Chemical Characteristics:

Polymer StructureGel polystyrene crosslinked with divinylbenzene
AppearanceSpherical Beads
Functional GroupSulfonic Acid
Ionic FormNa+ form
Total Capacity1.9 eq/L (41.5 Kgr/ft³) (Na+ form)
Moisture Retention46 - 50 % (Na+ form)
Particle Size Range300 - 1200 µm
< 300 µm (max.)1 %
Uniformity Coefficient (max.)1.7
Reversible Swelling, Na+ ? H+ (max.)10 %
Reversible Swelling, Ca2+ ? Na+ (max.)8 %
Specific Gravity1.27
Shipping Weight (approx.)800 - 840 g/L (50.0 - 52.5 lb/ft³)
Temperature Limit120 °C (248.0 °F)

Hydraulic Characteristics

Pressure Drop

The pressure drop across a bed of ion exchange resin depends on the particle size distribution, bed depth, and voids volume of the exchange material, as well as on the flow rate and viscosity of the influent solution. Factors affecting any of these parameters— such as the presence of particulate matter filtered out by the bed, abnormal compressibility of the resin, or the incomplete classification of the bed—will have an adverse effect, and result in an increased head loss. Depending on the quality of the influent water, the application and the design of the plant, service flow rates may vary from 10 to 40 BV/h.

Pressure Drop Across Resin Bed


During up-flow backwash, the resin bed should be expanded in volume between 50 and 70% for at least 10 to 15 minutes. This operation will free particulate matter, clear the bed of bubbles and voids, and reclassify the resin particles ensuring minimum resistance to flow. When first putting into service, approximately 30 minutes of expansion is usually sufficient to properly classify the bed. It is important to note that bed expansion increases with flow rate and decreases with influent fluid temperature. Caution must be taken to avoid loss of resin through the top of the vessel by over expansion of the bed.

Backwash Expansion of Resin Bed

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