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Premium Water Softener Resin for Long-Lasting Soft Water (52 lbs) 1 cu.ft, WQA Certified

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  • High-performance water softener resin for tackling hard water
  • Effective hardness removal: This 10% cross-linked water softening resin is designed to effectively remove hardness-causing minerals like calcium and magnesium from your water. Soft water improves the performance of soaps and detergents, reduces scaling in pipes and appliances, and makes showering and washing feel more comfortable.
  • Long-lasting durability: The 10% cross-linked structure makes this resin more resistant to chemical degradation, especially from chlorine commonly found in municipal water supplies. This translates to a longer lifespan and overall value for your water softener system.
  • Efficient regeneration process: The resin is easily recharged with standard water softener salt during the regeneration cycle. This process restores the resin's capacity to remove hardness minerals, allowing it to be reused for many cycles.
  • Wide compatibility: This is a standard resin commonly used in WECO and many other water softener systems. You can be confident that it will be compatible with your existing water softener unit.
  • Safety certified: For peace of mind, this resin has been tested and certified by the Water Quality Association (WQA) according to NSF/ANSI 61 standards for material safety and NSF/ANSI 44 standards for performance.
  • Convenient size: The resin comes in 52-pound, 1 cubic foot bags, which is a typical size for 9 inch diameter 48 inch tall tank standard residential water softener system. This size is easy to handle and store during routine maintenance.

C110DQ(Na), large bead, black resin is a high capacity, conventional gel polystyrene strong acid cation exchange resin designed for use in residential or industrial water softeners. Cation resin in sodium form removes hardness ions such as calcium and magnesium by replacing them with sodium. When the resin bed is exhausted the hardness ions begin to pass through the bed. Functionality is returned by regeneration with concentrated sodium or potassium chloride solution. The capacity obtained depends largely on the amount of salt used in the regeneration. Typically 12-15 lbs of chemical per ft3 is used to obtain maximum capacity of up to 35,000 grains per ft3 (claim not tested/certified by WQA). C110DQ-Na, large bead, black resin is rigorously treated before shipping to meet all NSF-44 standards requirements.


C110DQ(Na) large bead, black resin is insoluble in dilute or moderately concentrated acids, alkalies, and in all common solvents. However, exposure to >0.5 ppm of free chlorine, “hypochlorite” ions, or other strong oxidizing agents over long periods of time will eventually break down the crosslinking. Temperature over 30°C (85 °F) will accelerate the oxidation. This will tend to increase the moisture retention of the resin, decreasing it s mechanical strength, as well as generating small amounts of extractable breakdown products. Like all conventional Polystyrene sulfonated resins, it is thermally stable to higher than 160 °C (320 °F) in the alkali (for instance, sodium) or alkaline earth (calcium and magnesium) salt forms. The free acid form tends to hydrolyze in water temperatures appreciably higher than 130 °C (270 °F) thereby losing capacity, as the functional groups are gradually replaced by hydroxyl groups.

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