Home / Filters & Cartridges / Replacement Filters for RO Systems / 3M Carbon Block Post Filter for 3MRO401 and 3MRO501 RO Drinking Water Systems
3M Purification Inc.

3M Carbon Block Post Filter for 3MRO401 and 3MRO501 RO Drinking Water Systems

Part Number: 3MROP416
Alt. Part Number: 3MROP416-20A, 47-9298G2, 47-55710CM, 4373531
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The 3M 3MROP416 Cartridge is the replacement carbon block postfilter for the 3MRO401 and 3MRO501 Reverse Osmosis Drinking Water Systems. This filter provides a separate stage of chemical reduction to help extend the life of your 3M RO Drinking System, improves the smell and taste of your water, and reduces a variety of contaminants.

This filter has been optimized for reduction of select volatile organic compounds, and is tested and certified against NSF/ANSI Standards 42, 53, and 58 when used in models 3MRO401 and 3MRO501 for the reduction of substances specified in the performance data sheet.


  • Filter Life: 12 months
  • Capacity: 1,500 gallons
  • Filter Media: Carbon block
  • Reduces: Sediment, chlorine taste and odor, cysts, arsenic, barium, cadmium, chromium (Hex), chromium (Tri), copper, fluoride, lead, radium, selenium, turbidity and TDS
  • Temperature Range: 40 - 100°F
  • Pressure Range: 40 - 125 psi
  • Service Flow Rate: 0.6 gpm
  • Easy Filter Change-outs: Twist on & off; no mess!
  • NSF certified
  • Manufactured in Mexico

Compatible with:
California residents Prop 65 Warning
This product contains materials known to the State of California to cause cancer and birth defects or other reproductive harm. www.p65warnings.ca.gov