iSpring WGB21B 2-Stage Whole House Water Filtration System w/ 4.5"X10" Sediment and Carbon Block Filters

iSpring WGB21B 2-Stage Whole House Water Filtration System w/ 4.5"X10" Sediment and Carbon Block Filters

Q: I have a white build up on my coffee maker, will these filters stop it

No, it won't. The white stuff on your coffee maker is caused by the calcium material in your water. We recommend you to purchase iSpring RCC7 Reverse Osmosis System to pure your drinking water as the Reverse Osmosis Membrane can remove up to 99% of most contaminants including Arsenic, Nitrates, Radium, Chromium, Fluoride and dissolved solids such as sodium, calcium, iron, magnesium, copper.etc. The WGB21B provide you the basic water filtration because it can remove up to 95% of VOCs, sediment, chlorine, and other contaminants that cause foul tastes and odors

Q: is flow left to right, right to left, or can it go either way?

Right to left. My system set up required left to right. As all the other answers correctly state, it's switchable and ez to do. Unscrew the 8 bolts, flip things around, voila. Done. My system is working perfectly and now flows left to right.

Q: How does this unit flow 15 gpm when the replacement filter states that it has a max flow of 3gpm?

The max flow rate of the system is 15 GPM with the filters installed. Please reach out to us over email or give us a call at 678.261.7611 if you have any additional questions. Best, iSpring Water Systems LLC

Q: upstream or downstream of the water softener...seeing people do both?

You need a 50 micron spin down sediment filter plus 30-25 micron cartridge pleated sediment filter then water softener if used and then this set after softener. This will reduce filter replacement and prolong lifespan of water softener. You will save more money in the long run.

4.5/5

Product ID: 298653058

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Details

Brand
iSpring
Special Feature
NSF certified
Package Information
Cartridge
Installation Type
Under Sink
Power Source
Corded

⏳Up to 50,000 gallons/year capacity

💧2-stage filtration for pure water

🔧DIY install with included wrench

Frequently Bought Together

iSpring WGB21B 2-Stage Whole House Water Filtration System, with 10" x 4.5" Sediment CTO(Chlorine, Taste, and Odor) Filter, 1" Inlet/Outlet

iSpring F2WGB21B Whole House 4.5"x10" Water Filtration High Capacity Sediment and CTO Carbon Block Water Filter Replacement Cartridge Pack Set, Model: WGB21B

iSpring FP15B Sediment Filter Replacement Cartridge for Whole House Water Filtration Systems, High Capacity 5-Micron Premium PP, 4.5" x 10", White

Description

💧 Elevate every faucet with crystal-clear confidence

WHOLE HOUSE PURITY - Premium 5-micron sediment filter removes dirt, rust & scale before carbon stage
EFFORTLESS DIY SETUP - Pre-assembled system with pressure release valve and wrench for quick filter changes
LONG LASTING PERFORMANCE - Filters last up to 1 year or 50,000 gallons—ideal for busy households
ADVANCED CARBON BLOCK TECH - Coconut shell carbon eliminates 90%+ chlorine, odors & VOCs for fresh taste
TRUSTED SUPPORT WARRANTY - 1-year warranty plus lifetime tech support ensures peace of mind

The iSpring WGB21B is a 2-stage whole house water filtration system featuring a 5-micron sediment filter and a premium coconut shell carbon block filter. It delivers up to 50,000 gallons of clean water annually, removing dirt, chlorine, odors, and harmful VOCs while preserving healthy minerals. Designed for easy DIY installation with included tools and backed by a 1-year warranty plus lifetime support, it’s the smart choice for millennial professionals seeking pure water and appliance longevity.

Specifications

Brand	iSpring
Special Feature	NSF certified, Chlorine Reduction
Package Information	Cartridge
Installation Type	Under Sink
Power Source	Corded Electric
Item Weight	9.89 kg
Model Name	WGB21B 2-Stage Whole House Water Filtration System
Shelf Life	1 Years
Supported Water TDS Level Maximum (PPM)	2500
UPC	662425080359
Global Trade Identification Number	00662425080359
Manufacturer	iSpring
Item model number	1
Product Dimensions	66.04 x 48.26 x 27.94 cm; 9.89 kg
ASIN	B01F9A4UVU

Have a Question? See What Others Asked

I have a white build up on my coffee maker, will these filters stop it

is flow left to right, right to left, or can it go either way?

How does this unit flow 15 gpm when the replacement filter states that it has a max flow of 3gpm?

upstream or downstream of the water softener...seeing people do both?

Common Questions

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