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iSpring WGB22B Whole House Water Filtration System

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iSpring WGB22B Whole House Water Filtration System

#water-filtration#pre-filters#plumbing-supplies#hardware
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This guide focuses on the installation of the iSpring WGB22B 2-Stage Whole House Water Filtration System, complemented by essential plumbing components. It provides a structured approach for homeowners looking to install a robust water filtration solution by themselves. The selection includes the primary filtration unit, a crucial pre-filter, and all necessary connection and sealing materials.

Curated by The Shelf Curator · Updated June 2026

Built for homeowners on municipal water who need to resolve chlorine taste and sediment issues while maintaining high flow rates throughout the home. Not for those on heavy well water with high iron or sulfur, which requires a specialized oxidation system rather than a carbon-based two-stage setup.

Curator's pick: iSpring WGB22B 2-Stage Whole House Water Filtration System

This unit is the essential hub of the setup, utilizing 20-inch big blue filters that offer double the capacity of standard 10-inch housings to prevent pressure drops. The combination of a 5-micron sediment filter and a high-grade CTO carbon block effectively balances contaminant removal with the mechanical durability needed for the main water line.

⚠ Worth knowing: The carbon block filter in this system significantly reduces chlorine but will not lower Total Dissolved Solids (TDS) readings; for those requiring mineral-free water for laboratory or specific appliance needs, an additional Reverse Osmosis unit is necessary at the point of use.

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This shop is built around the iSpring WGB22B 2-Stage Whole House Water Filtration System, directly addressing the common homeowner need for improved water quality. It provides the core components for a robust DIY water filtration setup, empowering individuals to take control of their home's water supply.

This guide is for the proactive homeowner with basic plumbing skills who wants to install a comprehensive water filtration system for their entire house. It's ideal for those seeking to reduce sediment, chlorine, and other contaminants, ensuring cleaner water for drinking, bathing, and appliance longevity.

To get started with fundamental filtration, focus on the main filter and pre-filter for an initial investment under $500. A full build, including all plumbing connections and mounting, will bring the total cost to around $420-$640, ensuring a complete and secure setup.

Full build

$420–$640

Starter

$330–$490

main filter + pre-filter only

Best forWhole Home FiltrationDIY EnthusiastsWater Quality ImprovementSediment ReductionChlorine Removal

iSpring WGB22B 2-Stage Whole House Water Filtration System

Match 99%

iSpring

Water Filtration$250-$350

The iSpring WGB22B 2-Stage Whole House Water Filtration System is designed to provide clean water for an entire home. It uses sediment and carbon block filters to remove common contaminants, suitable for households seeking improved water quality from their main supply.

  • Whole house water filtration
  • 2-stage sediment and carbon block filters
  • Reduces chlorine, odors, sediments
  • Capacity for average sized homes
  • 1-inch NPT inlet/outlet ports

In this shop: This product is central to the "iSpring WGB22B Whole House Water Filtration System" topic, serving as the core filtration unit for the installation guide.

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iSpring WSP-50SL Reusable Spin-Down Sediment Water Filter

Match 99%

iSpring

Pre-Filters$80-$120

The iSpring WSP-50SL Reusable Spin-Down Sediment Water Filter acts as a pre-filter, protecting subsequent filtration stages from larger particles. Its reusable design and siliphos media help reduce maintenance and prevent scale buildup in plumbing systems.

  • 50 micron spin-down pre-filter
  • Reusable, flushable filter element
  • Includes siliphos for scale prevention
  • Protects main filtration systems
  • 1-inch NPT connections

In this shop: This pre-filter is included to enhance the base iSpring WGB22B system by preventing premature clogging and extending filter life, fitting the system's focus on comprehensive water treatment.

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SharkBite Max Push-to-Connect Ball Valve 1 Inch

Match 90%

SharkBite

Plumbing Supplies$20-$35

The SharkBite Max Push-to-Connect Ball Valve is a 1-inch shut-off valve for plumbing lines. It allows for easy installation and isolation of sections of a water system, critical for maintenance or filter changes without interrupting the main water supply.

  • 1-inch Push-to-Connect Ball Valve
  • Brass construction
  • Tool-free installation
  • Quarter-turn shut-off
  • For PEX, copper, CPVC

In this shop: A shut-off valve is a practical and essential component for managing water flow during the installation and maintenance of the iSpring filtration system.

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PEX Tubing 1-Inch Blue and Red Coil

Match 85%

Generic

Plumbing Supplies$50-$100

PEX Tubing, in 1-inch blue and red coils, offers flexible and durable piping for water distribution. It is used to connect the main water line to the filter system, providing an alternative to rigid pipe and simplifying complex plumbing runs.

  • 1-inch PEX tubing
  • Flexible, durable potable water pipe
  • Blue and red coils for hot/cold indication
  • Resistant to scale and chlorine
  • Compatible with various fittings

In this shop: PEX tubing is a practical choice for making the necessary plumbing connections for the iSpring filter, aligning with a DIY-friendly installation guide.

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iSpring GA1-2 1-Inch Mounting Bracket

Match 92%

iSpring

Hardware$15-$25

The iSpring GA1-2 1-Inch Mounting Bracket is a heavy-duty solution for securing water filter housings to a wall. Its robust construction ensures stability for larger whole house systems, preventing movement and reducing strain on plumbing connections.

  • Heavy-duty filter mounting bracket
  • Designed for 1-inch filter housings
  • Powder-coated steel
  • Supports large whole house filters
  • Wall-mountable design

In this shop: This mounting bracket ensures the secure and stable installation of the iSpring WGB22B, which is crucial for a reliable whole house system.

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Oatey Great White Pipe Joint Compound

Match 90%

Oatey

Plumbing Supplies$5-$10

Oatey Great White Pipe Joint Compound is a sealing material for threaded pipe connections in plumbing systems. It ensures leak-proof seals on NPT fittings, preventing water leaks and protecting plumbing integrity.

  • Pipe thread sealant
  • Non-hardening compound
  • For metal and plastic threads
  • Withstands pressure and temperature
  • Non-toxic, safe for potable water

In this shop: Proper sealing is a fundamental aspect of any plumbing installation; this compound helps achieve a leak-free setup for the iSpring system.

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What works

  • This system provides comprehensive water filtration at the point of entry, ensuring cleaner water flows to every faucet and appliance in the home.
  • The combination of a pre-filter and a 2-stage filtration unit effectively removes a wide range of contaminants, including sediment and chlorine, improving taste and protecting plumbing.
  • The use of push-to-connect valves and flexible PEX tubing simplifies the installation process, making it accessible for homeowners with moderate DIY experience.

What to know

  • The physical size of the whole house filtration unit may require dedicated space in a basement or utility room, which might be a challenge in smaller homes.
  • Periodic maintenance, including filter changes and pre-filter cleaning, is necessary to ensure the system operates at peak efficiency and requires a commitment to routine upkeep.

How to use this together

  1. 1

    Plan Your Installation Location

    Before purchasing or installing, identify a suitable location for the iSpring WGB22B and WSP-50SL system near your main water line's point of entry. Ensure sufficient clearance around the filters for future maintenance and filter changes, and that it's protected from freezing temperatures.

  2. 2

    Install Pre-Filter and Main Filter

    Mount the iSpring GA1-2 1-Inch Mounting Bracket securely to a wall stud. First, install the iSpring WSP-50SL Reusable Spin-Down Sediment Water Filter, followed by the iSpring WGB22B 2-Stage Whole House Water Filtration System, using PEX Tubing and SharkBite Max Push-to-Connect Ball Valves to plumb them in sequence from the main water supply. The pre-filter must come before the 2-stage filter to protect its cartridges.

  3. 3

    Secure Connections and Test for Leaks

    Apply Oatey Great White Pipe Joint Compound to all threaded connections to ensure a watertight seal before tightening. Once all plumbing is connected, slowly turn the main water supply back on, checking thoroughly for any leaks at each connection point. Address any drips immediately by slightly tightening or re-sealing.

Frequently asked questions