.33 Cubic Foot of KDF85 Filtration media – Ferrous Oxidation / Reduction Media – 57 lb. Pail


SKU: KDF85-PAIL-57# Category:


Introducing KDF 85 filtration media, a catalyst for unparalleled water purification. Crafted from a high-purity copper/zinc alloy, KDF 85 initiates a transformative oxidation/reduction (redox) process, converting soluble ferrous cations into insoluble ferric hydroxide. This innovative technology, backed by rigorous scientific principles, achieves exceptional iron removal rates of 98% or better, facilitated by dissolved oxygen in the water.


  • Catalyst-driven iron removal, offering superior performance in water treatment applications.
  • Highly effective against copper, which undergoes oxidation, and sulfur, which undergoes reduction.
  • Forms insoluble copper sulfide, easily removable through backwashing, ensuring prolonged media lifespan.
  • Maintains optimal water quality, safeguarding against the detrimental effects of iron contamination.
  • Compatible with existing filtration systems, enhancing their efficiency and longevity.

Physical Properties:

  • Form: Granular
  • Composition: Atomized high-purity copper/zinc alloy
  • Apparent Density: 171 lbs./cu. ft.
  • Particle Size Range: 2.00 mm to 0.149 mm
  • Screen Size (U.S. Mesh): -10 +100
  • Turbidity: >20 ntu
  • Color: Reddish Brown

Conditions for Operation:

  • Freeboard: 20%
  • Service Flow Rate (10″ min.): 15 gpm/sq. ft.
  • Backwash Flow Rate: Twice service flow rate for 10 minutes
  • Purge/Rinse Flow Rate: Twice service flow rate for 3 minutes
  • Backwash bed expansion: 10-15%
  • Minimum Bed Depth (6″ diam.): 15″

Experience the pinnacle of water purification technology with KDF 85 filtration media, ensuring pristine water quality and optimal system performance.

Additional information

Weight 57 lbs
Dimensions 18 × 18 × 18 in