iSpring WGB12B 1-Stage Whole House Water Filtration System w/ 20” x 4.5” Carbon Block Filter - Reduces up to 99% Chlorine
About this item
- Protect Your Family and Household Appliance from Chlorine and More - Say goodbye to smelly, bad tasting water! Our system removes up to 99% of chlorine from water as well as sediments, rust, pesticides, herbicides, industrial solvents, and various other contaminants. It works well with city water that has a low level of sediments.
- DIY Installation and Maintenance - Refer to our manual and our helpful YouTube videos for DIY installation. 1” NPT inlet/outlet, 20” x 4. 5” filter cartridges, water flow: up to 15 GPM. This system is installed at the main water supply line in order to treat all the water in your home.
- The CTO Carbon Block filter is made of high-quality coconut shell carbon for maximum filtration efficiency and filter life. It is tested by an independent third-party to meet NSF/ANSI standards. The system has a capacity of 100,000 gallons of water, enough to supply a family of four with clean water for half a year. The cartridge is individually wrapped to ensure freshness. Please unwrap the cartridges before use.
- Peace of Mind Customer Service - Register online to activate your extended manufacturer and life-time free tech support from U.S. local support team. We stand behind our products and if you encounter any problems with any of our products please reach out to us immediately. We are happy to help!
- Please Note - Unlike an RO system, this system will NOT reduce Total Dissolved Solids (TDS). If you are interested in a filter that removes TDS consider our iSpring Reverse Osmosis (RO) systems.
Frequently Bought Together

iSpring WGB12B 1-Stage Whole House Water Filtration System w/ 20” x 4.5” Carbon Block Filter - Reduces up to 99% Chlorine

Premium Filtration

At iSpring, we look beyond technology to make high quality drinking water accessible for all households. We provide our customers with professional water solutions to any water concerns they may have.

iSpring carbon block filter uses high quality coconut shell carbon and highly compact fabrication tech for maximum filtration efficiency and filter life.

Whether it's washing fresh produce like fruit and vegetables, or providing us with some extra peace of mind about the safety of our best friends, this system can provide you with delicious, clean water straight from your tap.

Frequently Asked Question
Q: With this whole house system, do I still need to install a water softener if my water is very hard?
A: Yes, a water softener is needed if your source water has a high level of hardness, usually with TDS higher than 700 PPM. Hard water can reduce the lifespan of whole house water filter cartridges. The harder the water, the greater amount of scale buildup occurs, and the sooner the filters get clogged.
This whole house water filter can remove up to 95% of sediment, chlorine, rust, pesticides, herbicides, industrial solvents, VOCs, and various other contaminants that a regular water softener can't, although it does not soften your water. It is recommended that you install this WGB12B series whole house system after your water softener to achieve optimal performance if you have hard water.
To determine which product best suits your needs, it is recommended that you get a professional water test done prior to purchase to identify the main issue of your source water.
Note: Water Softeners and whole house systems usually do not lower the TDS level of the water. An additional Reverse Osmosis system may be necessary for your drinking water. Please consult iSpring professionals prior to purchase if you are unsure of which product will meet your needs.

100,000-gallon capacity replaceable highly compact coconut shell activated carbon filter provides 6 months of clean water for your entire family.

The WGB12B series is equipped with premium coconut shell carbon block filter. The densely packed carbon block filtration media provides more effective contaminant removal and longer filter life.

Source water temperature: 40°F ~ 125°F
Pressure impact: 5 PSI drop at a flow rate of 5 GPM
1" input/output brass ports handle up to 0.25 gallon per second
Built-in pressure release button for installation and filter changes
- Filter Size
- 4.5" x 20"
- 4.5" x 20"
- 4.5" x 20"
- 4.5" x 20"
- 4.5" x 20"
- 11" x 63.5"
- Filtration Capacity
- Up to 100,000 Gallons
- Up to 100,000 Gallons
- Up to 100,000 Gallons
- Up to 50,000 Gallons
- Up to 150,000 Gallons
- Up to 1,000,000 Gallons
- Water Pressure Delivered
- Up to 15 GPM
- Up to 15 GPM
- Up to 15 GPM
- Up to 15 GPM
- Up to 15 GPM
- Up to 26 GPM
- Reduces Chlorine, Taste, and Odor
- Up to 99%
- Up to 99%
- Up to 99%
- Up to 99%
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- Up to 99%
- Reduces Lead and Mercury
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- -
- -
- -
- -
- Lead: 99.4% reduction at 150 ppb; Mercury: 98.9% reduction at 6 ppb
- Prevents and Reduces Scale and Corrosion
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- -
- -
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- Size
- R4.5” x 20”
- R4.5” x 20”
- R4.5” x 20”
- R4.5” x 20”
- R4.5” x 20”
- R4.5” x 20”
- Filtration
- 5 Micron or 20 Micron Sediment Reducing
- Chlorine Reducing
- Iron & Manganese Reducing
- Lead Reducing
- Anti-Scale
- Heavy Metals Reducing
- Material
- Polypropylene
- Coconut Shell Carbon
- Catalytic Media (No Chemical Added)
- Ion Exchange Resin
- Patented Scale Inhibitor
- GAC + KDF
- Life Cycle
- Up to 100,000 Gallons (12 Months)
- Up to 100,000 Gallons (12 Months)
- 50,000 Gallons at 3.0 ppm Iron Level
- 150,000 Gallons at 100 ppb Lead Level
- Up to 150,000 Gallons (12 Months)
- Up to 150,000 gallons (12 months)
Product Description
The WGB12B is a "point of entry" filtration system for cleaning up heavily treated and chlorinated city water. Unlike "point of use" systems, the WGB12B will filter your water directly from the source. This means that water from every outlet in your home will have passed through this filter.
This system comes standard with a 5-micron CTO coconut shell carbon block filter. Block carbon is finely ground up carbon packed into a solidified block. It knocks out bad tastes and odors, removes up to 99% of sediment and chlorine from the water, and is effective on pesticides, herbicides, and industrial chemicals.
If you are on city water, your local water utility must meet very strict Federal and State standards for purity. Almost all municipally treated water is chlorinated, and this can affect the taste and create odors in the water. The WGB12B filtration system will remove these tastes and odors. If you are on a private well or spring, you should have your water tested, and you also may want to contact our technical staff for help in selecting the suitable filter system for your water chemistry.
- Availability: In Stock
- Model: WGB12B
- Manufacturer: iSpring
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WGB12B Manual.pdf