Name: iSpring WGB21B
Brand: iSpring
SKU: B01F9A4UVU
Price: 155.99 USD
Availability: InStock
Rating: 4.6 (1932 reviews)

Expert Review Analysis

The iSpring WGB21B is a compact 2-stage whole house water filtration system designed to remove sediment, chlorine, and other contaminants from the entire home's water supply. It combines a 5-micron polypropylene sediment pre-filter with a coconut shell carbon block filter to deliver clean water at a high flow rate of up to 15 GPM. The system is pre-assembled for easy DIY installation and is suitable for households of 1–5 people.

✓ Best for: Apartment dwellers and renters in smaller living spaces needing effective whole-house filtration. Families of 1–5 people seeking basic chlorine and sediment removal for the entire home. Homeowners with secondary properties like vacation homes where space is limited but water protection is desired. Users seeking DIY-friendly installation without professional plumber requirements. Users needing sediment and chlorine reduction but not specialized contaminant removal✗ Not ideal for: Users requiring reduction of Total Dissolved Solids (TDS) levels. Households needing removal of heavy metals like mercury or micro-organisms in the base model. Water conditions requiring removal of specific contaminants like arsenic or cadmium. Users unwilling to perform filter replacements every 6–12 months

Pros

✓High flow rate of 15 GPM minimizes pressure loss compared to some competitors
✓

Best Seller Rank History

Now#9Best#6Worst#127 +30

Lower = better sales rank

Specifications

Design

Height11.0 inches mm

Width19.0 inches mm

Length26.0 inches mm

Features

First Stage Filter Type5-micron polypropylene (PP) sediment filter

Second Stage Filter TypeCTO carbon block filter (coconut shell)

Filter Dimensions10" x 4.5"

TDS ReductionNo

Heavy Metal ReductionLimited (Standard model does not reduce mercury/micro-organisms)

General

BrandiSpring

ManufactureriSpring Water Systems

ModelWGB21B

ColorBlue

Warranty1 year

Performance

Filtration Stages2

Flow Rate15 GPM GPM

Filter Capacity50,000 gallons gallons

Filter Life12 months

Filtration MethodCarbon Block

Ports

Inlet/Outlet Size1 inch NPT mm

Power

Water Temperature Range40–100°F

Filtration

First Stage Filter5-micron polypropylene (PP) sediment filter (FP15B)

Second Stage FilterCTO carbon block filter (FC15B) made from coconut shell carbon

Installation

Inlet/Outlet Ports1" NPT ports

Dimensions & Weight

Height11.0 Inches

Width19.0 Inches

Depth26.0 Inches

Weight21.8 pounds

Research Sources

ispringfilter.com

ispringwatersystems.com

lowes.com

tractorsupply.com

ispringwatersystems.com

homedepot.com

images.thdstatic.com

espwaterproducts.com

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iSpring WGB21B

Expert Review Analysis

Best Seller Rank History

Specifications

Design

Features

General

Performance

Ports

Power

Filtration

Installation

Dimensions & Weight

Research Sources

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