Free Shipping on most orders over $89
Shipping To:
Home / Filters & Cartridges / Carbon Filters / Carbon Block / Whirlpool 4373531 Ultrafine Block Carbon Filter

Whirlpool 4373531 Ultrafine Block Carbon Filter

Part Number: 4373531
This item is discontinued. We recommend the 3M Carbon Block Post Filter for 3MRO401 and 3MRO501 RO Drinking Water Systems as a substitute.
similar items

The Whirlpool 4373531 Ultrafine block carbon water filter replacement is used with the CoolerMATE CMRO-3TFC reverse osmosis system and the FaucetMATE FM-2 CTO and CoolerMATE CM-2 CTO filter systems.

  • The Ultrafine 4373531 filter reduces bad taste and odor
  • Reduces chlorine
  • Replace every 6-12 months
  • Used in FM-2, FM-350, CM-2 and SQC systems

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.