Pre Filter Big Blue Whole House Water Filter

Sale price$170.00


Pre Filter Big Blue Whole House Water Filter


Pentek's 20" Big Blue 

Pentek's 20" Big Blue Water Filter Housing is a widely recognized solution in the water treatment industry, known for its robustness and reliability in various water filtration applications. This filter housing is designed to accommodate large-capacity filter cartridges, providing substantial flow rates and extended filter life, making it suitable for both residential and commercial applications. Let’s delve into its detailed aspects:

Key Features:

1. Size and Capacity:

  • 20-Inch Housing: Can accommodate 20-inch filter cartridges, providing a larger filtration area and hence, longer filter life.
  • Big Blue Design: Known for its larger diameter, which allows for higher flow rates and reduced pressure drop.

2. Material and Build:

  • Durable Construction: Typically made from a durable polypropylene or similar material that is resistant to chemicals and corrosion.
  • Opaque or Transparent: Available in opaque or transparent sumps, the latter allowing for visual inspection of the filter cartridge.

3. Port Size:

  • Versatile Connections: Available in various port sizes to accommodate different plumbing configurations and flow requirements.

4. Pressure Release Button:

  • Ease of Use: Features a pressure release button to relieve internal pressure during filter cartridge replacement, making the process safer and easier.


1. Filtration Compatibility:

  • Versatility: Compatible with a wide range of filter cartridges, including sediment, carbon, and specialty filters.
  • Application: Suitable for various applications, including pre-filtration for RO systems, whole-house filtration, and commercial filtration setups.

2. High Flow Rates:

  • Efficiency: Designed to handle high flow rates with minimal pressure drop, ensuring efficient operation and consistent water supply.

3. Sealing:

  • Effective Seals: Utilizes high-quality O-rings to ensure a tight seal and prevent leaks.
  • Bypass Prevention: Ensures that all water passes through the filter cartridge, maximizing filtration efficacy.

Installation and Maintenance:

1. Installation:

  • Flexibility: Can be installed in various points in the plumbing system, depending on the specific filtration needs.
  • Professional Installation: Recommended to ensure proper setup, leak prevention, and adherence to local plumbing codes.

2. Maintenance:

  • Cartridge Replacement: Regular replacement of the filter cartridge is essential to maintain optimal filtration performance.
  • O-Ring Care: Periodic lubrication and replacement of the O-ring ensure a continuous, leak-free seal.
  • Cleaning: Occasional cleaning of the housing sump to prevent bacterial growth and ensure clean operation.


  • Residential Use: Ideal for whole-house water filtration to remove sediment, chlorine, and other contaminants.
  • Commercial Use: Suitable for various commercial applications, including restaurants, cafes, and small manufacturing units.
  • Industrial Applications: Can be utilized in certain industrial processes where filtered water is required.


  • Improved Water Quality: Ensures the removal of contaminants, providing cleaner, safer water.
  • Extended Equipment Life: Protects appliances and fixtures from potential damage caused by sediment and other particulates.
  • Consistent Flow: The large capacity and high flow rate ensure a consistent supply of filtered water.


Pentek's 20" Big Blue Water Filter Housing offers a reliable and efficient solution for various water filtration needs, ensuring a consistent supply of clean and safe water. Its robust construction, versatility in filter cartridge compatibility, and ability to handle high flow rates make it a preferred choice in various applications. Always ensure to follow the manufacturer’s guidelines for installation, use, and maintenance to ensure safe and optimal operation.

Drinking water filter housings come in different sizes and styles to hold a variety of water filters based on flow rate, connection size, and connection type.


  • Blue
  • 1"
  • N
  • Y
  • Double Filter
  • 20"

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