Bulk Reef Supply

Pentek CRFC20-BB Carbon Block (Chloramines Monster)

In stock
Out of stock

Discontinued by Bulk Reef Supply
- +

Approximately 10% of city municipal waters systems use chloramines to process water. Standard RO filters will not treat chloramines properly. If your water supply contains chloramines and are in need of a high output application the Pentek CRFC20-BB ChlorPlus Radial Flow carbon block is ideal. To find out what's in your water contact your city and ask for a water report. Pentek CRFC20-BB Specs

  • 20 Micron nominal filtration
  • Unique radial flow design for low pressure drop and reduced fines
  • Fits 20" x 4.5" Big Blue RO Housings
  • Removes chloramines AND chlorine
  • Typically installed prior to the main RO unit


The Pentek CRFC20-BB carbon block cartridge help reduce sediment while providing greater chloramines performance capacities than granular carbon. It also significantly reduces the carbon fines found in many granular canisters. It is ideal for higher flow rate and capacity applications.

The CRFC20-BB cartridge is capable of removing chloramines from

  • 10,000 gallons of water at 5 GPM*
  • 25,000 gallons of water at 2.5 GPM*
  • 75,000 gallons of water at 1 GPM * (**)  


* This cumulative filtered water and includes both product and wastewater

** All of our RO and RO/DI systems operate at 1 GPM or less

More Information
UPC 051678967430
Filter Dimensions 20 in. x 4 in.
Carbon Block Type Chloramines/Universal
Micron Rating 20
Write Your Own Review
You're reviewing:Pentek CRFC20-BB Carbon Block (Chloramines Monster)
Your Rating
Only registered users can write reviews. Please or

Product Questions

No questions yet. Be the first to ask the question!