• Sodium form Utilize single use resin technologies for maximum life grains (CaCo3) capacity 4500 capacity (grains as CaCO3) Polypropylene endcaps, pre-filter and post filter, Buna-N gaskets Cation, sodium form resin, 20 x 40 mesh, R-SO3-Na+ filter media

Pentair Pentek® WS series cartridges are designed to allow optimal contact between water and resin surfaces, ensuring maximum ion exchange. The internal expansion pad minimizes channeling, while the post filter eliminates any potential for bypass. Designed for low water usage, these units will easily deliver softened product water through the use of a sodium-based, non-solvent rinsed softening resin. The cartridge style design provides a convenient solution for delivering softened water to protect sensitive water delivery equipment. WS series cartridges are available in three sizes for use in Pentek® Slim Line®, Standard and Big Blue® series filter housings. Properly sized, these units can effectively treat water in applications desiring low hardness and scale deposits with capacity ranging between 750 to 4500 grains. Water softening cartridges provide superior performance and outstanding protection for medical equipment, coffee and espresso appliances, low-volume beverage and commercial food service machines.