Check the listing for details. 8000 gr Water Softener Resin (0.25 CuFt=7.08 L)or(12.5 lbs=5.67 Kgr)-Replacement. Condition: New. Listed at 49.48 USD. 0.25 Cubic Feet or 7.08 Liters of high capacity softener resin. If your softener is more than five years old or there is a lot of iron in your water then you might need to replace your filter media known as Ion-Exchange Resin. We are providing new resin supplied in the very stable sodium form. Polymer Structure Styrene Crosslinked with DVB Functional Group R-(SO3)–M+ Ionic Form, as shipped Sodium Physical Form Tough, Spherical Beads Screen Size Distribution 16 to 50 +16 mesh (U.S. Std) < 5 % -50 mesh (U.S. Std) < 1 % pH Range 0 – 14 Sphericity > 93 percent Uniformity Coefficient Approx. 1.6 Water Retention Sodium Form 52 lbs/cu.ft. Solubility Sodium Form 42 to 49 percent Approximate Shipping Weight Insoluble Swelling Ca+2 or Na+ to H+ 52 lbs/cu.ft. Total Capacity 5 to 9 percent Sodium Form 1.9 meq/ml min Hydrogen Form 1.8 meq/ml min