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Pentek FloPlus 10", 0.5 Micron Carbon Block Cartridge

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  Stock Item
  •   Model # FloPlus-10
  •   Part # 455903-43
  •   UPC 051678014349
  •   Brand Pentek
  • Carbon Block Cartridge
  • High Flow Cartridge, Low Pressure Drop
  • Ideal for Inline Systems
  • 0.5 Micron Filtration
  • Removes Chlorine, Taste & Odor
  • Removes Cryptosporidium & Giardia
  • Enhanced Sediment Removal
  • Fits Standard 10" Housings
Cartridges Sold Individually
 Quantity Discounts
Filtered Water Benefits the Whole Family
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Do You Need A Whole Water Filter System?
We offer housing assemblies without cartridges so you can design your own system.
  Not for residential sale in the state of California.

FloPlus cartridges utilize a revolutionary new technology that significantly enhances the traditional Fibredyne product, making it possible to obtain cyst reduction in a cartridge that functions like a nominal 10-micron cartridge.

This product boasts extremely low pressure drops and high flow rates - comparable to 10-micron (very open) carbon cartridges. Its efficiency is so high that a 0.5-micron rating is possible, which means that cysts and very small particles can be removed to create cleaner, safer water.

This product is ideal for applications where pressure drop and low flow have been chronic problems in the past, as well as whole house water treatment (using larger cartridges) with the addition of cyst reduction. However, it will address the needs of any end user looking for a product that offers high flow, low pressure drop, infrequent cartridge changes and cyst-free water.

Removes CryptosporidiumRemoves GiardiaRemoves Chlorine


  • Nominal 0.5-micron rating
  • 99.95% reduction of Cryptosporidium and Giardia cysts
  • Premium dirt-holding capacity
  • Outstanding chlorine taste & odor reduction
  • True depth filtration which offers greatest life of any cyst-capable carbon cartridge
  • Pentek is the largest brand in the filtration industry
  • Pentek is the originator of carbon block production technology
  • Pentek is the largest producer of carbon blocks worldwide


  • High flow rates and low pressure drop similar to a nominal 10-micron cartridge
  • Maximum life - dirt-holding ability of a 10-micron carbon block with the particulate efficiency of a 0.5-micron cartridge
Structure of activated carbon in a carbon block filter
Standard Carbon Block Filter
Fibredyne Carbon Block Filter
Structure of FloPlus Fibredyne Modified Molded Block
*Fiberdyne is a Pentair subsidiary


  • Cyst reduction where low flow, high pressure drop or premature plugging has been problematic
  • Areas where low water pressure has made cyst reduction difficult due to high pressure drops (low flow)
Model Maximum Dimensions Nominal µm Rating* Initial ΔP @ Flow* Chlorine Capacity @ Flow*
FloPlus-10 9-3/4" × 2-7/8" 0.5 µm 2.0 psid @ 1.0 GPM >10,000 gal @ 1.0 GPM
FloPlus-20 20" × 2-7/8" 0.5 µm 2.0 psid @ 2.0 GPM >20,000 gal @ 2.0 GPM
FloPlus-10BB 9-3/4" × 4-5/8" 0.5 µm 4.0 psid @ 2.0 GPM >25,000 gal @ 2.0 GPM
FloPlus-20BB 20" × 4-5/8" 0.5 µm 4.0 psid @ 4.0 GPM >50,000 gal @ 4.0 GPM

* Based on manufacturer's internal testing.