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by Pentek

Pentek EP-20BB Carbon Block Filter Cartridge, 20" x 4-5/8", 5 Microns

4.6 out of 5 stars 50 customer reviews
| 12 answered questions

List Price: $62.83
Price: $57.16 & FREE Shipping. Details
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Specifications for this item
Brand Name Pentek
Part Number 155583-43
Number of Items 1
Specification Met NSF
UPC 851905131050 , 798527517490 , 700999877941 , 132017513058 , 163121152147 , 163120790494 , 806294984510 , 115971047135 , 851905125202 , 851905125257 , 182682388031 , 809390003468 , 115971035729 , 051678583432 , 808112760696 , 807032972783
Color white
EAN 0851905125202 , 0851905125257 , 0132017513058 , 0115971047135 , 0808112760696 , 0163120790494 , 0163121152147 , 0182682388031 , 0807032972783 , 0809390003468 , 0700999877941 , 0851905131050 , 0051678583432 , 0798527517490 , 0806294984510 , 0115971035729
Import Designation Made in USA or Imported
Item Weight 5.65 pounds
Particle Retention Size 5  Micron
Pressure Flow Rate 5.0  Gallons per Minute
UNSPSC Code 40161502

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Product Features

  • Reduces fine sediment and chlorine taste and odor in residential and commercial drinking water
  • Nominal filtration rating of 5 microns
  • Bonded PAC media with polyolefin pre-filter and polyethylene netting for extended life
  • Initial pressure drop of 5.5 psi at a flow rate of 5 gpm
  • Temperature range of 40 to 180 degrees F (4.4 to 82.2 degrees C)

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Product Details

Product Warranty: For warranty information about this product, please click here. [PDF]
  • Product Dimensions: 4.6 x 4.6 x 20 inches ; 5.6 pounds
  • Shipping Weight: 6.2 pounds (View shipping rates and policies)
  • Domestic Shipping: Item can be shipped within U.S.
  • International Shipping: This item can be shipped to select countries outside of the U.S. Learn More
  • ASIN: B00310Y9KI
  • Item model number: EP-20BB
  • Average Customer Review: 4.6 out of 5 stars  See all reviews (50 customer reviews)
  • Amazon Best Sellers Rank: #3,529 in Industrial & Scientific (See Top 100 in Industrial & Scientific)
  • Product Warranty: For warranty information about this product, please click here. [PDF]

Frequently Bought Together

  • Pentek EP-20BB Carbon Block Filter Cartridge, 20" x 4-5/8", 5 Microns
  • +
  • Pentek, Pentair Water 151122 Big Blue O-Ring Buna-N ORing
  • +
  • Pentek 155358, DGD-5005-20 Dual Gradient Density Polypropylene Sediment Cartridge
Total price: $81.46
Buy the selected items together

Product Description

This Pentek EP-20BB carbon block filter cartridge reduces fine sediment and chlorine taste and odor in residential and commercial drinking water. It has a nominal (85%) filtration rating of 5 microns. The filter will reduce free available chlorine (FAC) at 2 parts per million (ppm) by at least 90% in up to 40,000 gallons at a flow rate of 4 gallons per minute (gpm). This cartridge is made of bonded powdered activated carbon (PAC) filter media wrapped in a polyolefin pre-filter with polyethylene outer netting. The nitrile butadiene rubber (Buna-N) gaskets seal the cartridge against the housing (sold separately). The cartridge has an initial pressure drop of 5.5 pounds per square inch (psi) at a flow rate of 5 gallons per minute (gpm), and operates over a temperature range of 40 to 180 degrees F (4.4 to 82.2 degrees C). This carbon block filter cartridge meets National Sanitation Foundation/American National Standards Institute (NSF/ANSI) standard 42 for quality assurance, and is used for purification of residential and commercial drinking water.

Specifications

Nominal filtration rating5 microns
Initial pressure drop at 5 gpm5.5 psi
Chlorine reduction capacity40,000 gallons at 4 gpm
Temperature range40 to 180 degrees F (4.4 to 82.2 degrees C)
Maximum dimensions (H x W)20 x 4-5/8 inches (508 x 118 mm)
Materials certificationNSF/ANSI standard 42

The nominal filtration rating is for a particle removal efficiency of 85%. Chlorine reduction capacity is the minimum total amount of water for which the free available chlorine (FAC) at a concentration of 2 ppm is reduced by at least 90%.

H is height, the vertical distance from lowest to highest point; W is width, the horizontal distance from left to right; D is depth, the horizontal distance from front to back.

Water filters remove undesirable particles, chemicals, and microorganisms from water by means of a semipermeable barrier, adsorption, or biological processes. They are made of densely packed synthetic or natural fibers that trap suspended particles, materials that block microbes or adsorb unwanted chemicals, or substances that cause a chemical change, such as acid neutralization. For most residential, commercial, and industrial applications, water filters are manufactured in the form of replaceable cartridges that fit inside permanent housings. Filtration systems typically consist of a series of two or more types of filters, each designed to remove different contaminants. The performance of filters is measured by the minimum particle size that is blocked, the percentage of particles or microorganisms that are removed, the downstream concentration of unwanted chemicals, the maximum flow rate, and the amount of water that can be filtered before the filter must be replaced. Water filters are used in a wide range of applications, including drinking water purification, swimming pools, industrial processes, and irrigation, among others.

Pentair manufactures industrial, commercial, and residential water filtration components and systems. The company, founded in 1966 and headquartered in Minneapolis, MN, meets International Organization for Standardization (ISO) standards 9001 and 14001 for quality assurance.


Customer Questions & Answers

Customer Reviews

Top Customer Reviews

Verified Purchase
I get municipal drinking water with 1-2ppm of of chlorine (as much as a public pool) and 22 grains of hardness (more than 2x what's considered "extremely hard"). When I had a water softener installed in my house, I also had a Pentek 20" Big Blue Housing installed before softener. I wanted the carbon filter for a few reasons:

1) Keep chlorine out of the shower and bath, out of my family's lungs and off of our skin
2) Keep chlorine out of the washing machine where it bleaches our clothing
3) Protect the resin in the water softener, which should double it's life
4) Protect the plumbing (PEX pipes, rubber in fixtures, etc...) from chlorine
5) Remove the small amount of sediment that is in the city water which collects in valves and fixtures

I previously used the Pentek RFC20-BB Radial-Flow Granular Activated Carbon Cartridge. In comparison, this filter is less expensive, has a finer sediment filter (5 micron vs. 25 micron) and it's rated for up to 180F. Also, carbon block filters don't have the same channeling issues as GAC filters, which become less effective at higher flow rates.

However, compared to the RFC20-BB this filter can't handle as much water (only 40,000 Gal. vs. 70,000 Gal.) and has a bigger pressure drop (5.5 psi @ 5 gpm vs. 0.9 psi @ 4 gpm). Neither of those were a big concern for me. We use less than 1,000 gal/week so the capacity easily exceeds the 6 month replacement cycle. As for water pressure, I get a solid 60+ psi coming into my house and even a 10 psi drop is not noticeable. If you already have pressure issues, get RFC20 instead.
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Verified Purchase
There were many complaints that the Pentek EP-20BB Carbon Block Filter reduced system pressure by ~5 PSI. My pressure tank runs between 50 psi to 32 psi and to be honest I don't notice the pressure drop at all. My well pump is rather quick and only takes ~30s to raise the pressure back to 50psi. I don't know if that's masking the filter concerns others had. Does a good job of removing SO2 smell from water.
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Verified Purchase
Have two of these filters treating all the water in our home of 6 people - The filters get very "dirty" which we hope means the water is cleaner at the tap for drinking and for our water heater
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Verified Purchase
Does what it's supposed to.
Just be sure to replace the gaskets on the filter housing too.
Nobody seems to mention that in reviews but if your o-ring is bad when your replace your filter, you might be in trouble finding the right O-ring, as your filter housing will leak.

This happened to me, luckily, a nearby big box store had a compatible 5.75" GE o-ring with lubricant that worked (about $6).
Next time I'll get the o-ring with the filters so I can replace them all at once.
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Verified Purchase
We have high iron bacteria in our well water which produces an ugly sulphur smell. These filters are great at removing that and other items from our house water and last us about 3-6 months. We have 3 in the line between the well and the house water.
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Verified Purchase
I have had this filter for about 6 months, and it has performed very well. I never smell any chlorine, whereas without it, our city water has a very strong smell. It is easy to install, as well.
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By W. Boytim on February 23, 2016
Verified Purchase
The work horse of our home filtration system. The utility chlorinates 1/2 mile away and I take it back out upon arrival. With 10 people in the house we get ~6 months of use. This requires a pre-filter to catch clay fines or the Carbon Block plugs up prematurely. I have always changed on low pressure - never on Chlorine burn through.
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Verified Purchase
More than does the job that it was purchased for. Have COPD and the chlorine in the shower and regular water was always irritable. House plants are doing better than ever. Even look greener in the winter. Skin doesn't feel dry and scratchiness is much than the last several winters.
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