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Pentek NCP-20BB Carbon Water Filters (20-inch x 4-1/2-inch)

Price $63.99 List Price Price $90.99 Save 29%
Availability: In Stock
Fits most stand housings built for 20-inch x 4.5 inch filter cartridges
Choose a quantity
  • 1Filter$63.99 
  • 3Filters Price $60.21 each
  • 6Filters Price $57.59 each
  • High quality, great value replacement filter
  • Enhanced dirt holding capacity
  • Reduces contaminants down to 10 microns
  • Supports a flow rate of up to 10 gallons per minute (gpm)
› See more product details
  • High quality, great value replacement filter
  • Enhanced dirt holding capacity
  • Reduces contaminants down to 10 microns
  • Supports a flow rate of up to 10 gallons per minute (gpm)

Pentek NCP20-BB Filter Advantages

The Pentek NCP20-BB filters produce healthier, better-tasting drinking water. The Pentek NCP-20BB water filter cartridge is made from a non-cellulose media blend, which unlike cellulose cartridges, is resistant to bacterial attack and allows the filter to be used for municipal and nonchlorinated water applications. The Pentek NCP-20BB replacement filter provides sediment filtration and chlorine taste & odor reduction. The NCP20-BB cartridges are excellent polishing filters, and are ideal for post-filtration reverse osmosis and well water applications. The Pentek NCP-20BB water filter is rated as a nominal 10 micron water filter.

Pentek NCP20-BB Filter Construction

The Pentek NCP-20BB filter cartridges are constructed from carbon-impregnated pleated polyester material for enhanced flow rate and contaminant reduction. The Pentek NCP-20BB water filters offer sediment filtration, as well as taste, odor and chlorine taste and odor reduction in one cartridge. The filter pleats provide additional surface area for high dirt-loading capacity, while maintaining minimal pressure drop. The combination of a pleated polyester media and carbon filtration produces an outstanding filter cartridge with extended service life. Polyethylene netting and a supportive polypropylene core help enhance the stability and strength of the cartridge.

Pleated Filter Media

The Pentek NCP20-BB uses pleated filter media to maximize contaminant exposure to the filter media. More time along the media allows for higher capture and retention of unwanted contaminants. This also allows for greater amounts of larger particles of sediment and sand to collect within the pleats of the filter. This pleated design and polypropylene core enhance the structural stability of the filter and help increase the performance. Pleated filters are capable of providing high quality filtration and increased flow rate potential.

NOTE: Do not use with water that is microbiologically unsafe or of unknown quality without adequate disinfection before or after the system.

For more information please see the related tabs above and read the Pentek NCP20-BB User Guide

Package Qty1
Used In BrandsPentek
Manufacturer's IdNCP-20BB
Advertised Size (in)20 x 4-1/2
Actual Size (in)20 inches (length) x 4 1/2 inches (outside diameter)
Actual Size (cm)50.8 x 11.43
Outside Diameter (inches)4.5
MediaCarbon Impregnated Pleated Polyester
Primary Filter MediaCarbon Wrapped
Materials of ConstructionEnd Caps: Vinyl Plastisol, Netting: Polyethylene, Core: Polypropylene
Filter Life (gallons)1,000
Filter Life (liters)3,785.41
Filter Life (months)6 months
Micron Rating (Nominal)10
Operating Temperature (°F)40 - 125
Operating Temperature (°C)4.4 - 51.7
Flow Rate (gpm)10.00
Flow Rate (lpm)37.85
Country of ManufactureMexico
IncludesOne 20 x 4.5 Inch Pentek NCP-20BB Carbon Water Filter
Primary Filter MediaCarbon Impregnated Pleated Polyester

Reduced Contaminants

The PENTEK-NCP-20BB reduces the following contaminants:

  • Bad Taste and Odor
  • Chlorine Taste & Odor
  • Dirt
  • Sand
  • Sediment
  • Silt

The PENTEK-NCP-20BB is comparable with the following part numbers


User Guide


  1. Turn off water supply. Press red pressure-relief button (if present).
  2. Unscrew housing. Remove large o-ring, wipe clean and set aside.
  3. Discard used filter cartridge. Wash housing with dish soap and warm water using a nonabrasive sponge or cloth. Rinse thoroughly.
  4. Fill 1/3 with water. Add about 1 tablespoon of bleach and scrub to disinfect. Rinse thoroughly.
  5. Lubricate o-ring with clean silicone grease. Change o-ring if any damage cuts or degradation are present. Insert o-ring in groove.
  6. NOTE: This step is important to ensure a proper housing seal. Make certain the o-ring is seated level in the groove.
  7. Insert new filter cartridge.
  8. Screw housing onto the cap and hand-tighten. Do not over tighten. Make sure cap standpipe slips into cartridge.
  9. Turn on water supply. Press pressure-relief button (if present). Check for leaks before leaving installation.