iSpring WGB22B 2-Stage Whole House Water Filter

Name: iSpring WGB22B 2-Stage Whole House Water Filter
Brand: iSpring
Price: 369.99 USD

Whole-house filter · 15 GPM · Treats sediment · $370 at iSpring as of Oct 2026

The iSpring WGB22B is a two-stage whole-house cartridge system in 20 in. by 4.5 in. Big Blue housings: a 5-micron multi-layer polypropylene sediment cartridge and a coconut-shell carbon block. It is aimed at sediment, rust and cloudiness plus chlorine (up to 99%, a maker claim), taste and odor, herbicides and industrial solvents. It does not reduce TDS and, like the rest of the WGB line, does nothing for iron, manganese, sulfur or bacteria.

Flow is up to 15 GPM through 1 in. female NPT ports at 25-80 psi, 40-100 F and pH 6-9. The carbon block is rated for 100,000 gallons or 12 months. The unit is 16 by 8 by 28 in. and weighs 30 lb, with a metal bracket, two housings and a wrench included; there is no power or drain. No NSF/ANSI certification is stated on the product page.

Price was $369.99 at ispringfilter.com as of Oct 2026 (regular price). Warranty is iSpring's standard 1-year limited term, with paid 3-, 5- and 10-year extensions and 30-day money-back. Install is DIY with a manual and video.

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iSpring WGB22B 2-Stage Whole House Water Filter well water whole-house filter

Specifications

Verified 2026-10-06. Fields the manufacturer does not publish are marked “Not stated”.

iSpring WGB22B 2-Stage Whole House Water Filter specifications
Model	WGB22B (20 in. x 4.5 in. cartridges: PP sediment + FC25B carbon block)
Type	Whole-house filter
Treats	Sediment; also chlorine (up to 99%, maker claim), taste and odor, herbicides, industrial solvents, rust, cloudiness
Service flow	15 GPM'Up to 15 GPM' on the product page; the WGB & WDS series manual gives 'Flow Rate 3-15 GPM', 'Working Pressure 25-80 psi', 'Working Temperature 40-100F', 'pH Requirement 6.0-9.0'. Does not reduce TDS.
Capacity	100,000 gallonsCarbon block up to 100,000 gallons or 12 months.
Media / technology	5-micron multi-layer PP sediment cartridge + coconut-shell carbon block (20 in. x 4.5 in.)
Stages	2
Connection	1 in. FNPT
Installation	DIYDIY install with manual and video; 1 in. female NPT ports; metal bracket, two housings, wrench included.
Warranty	1-year manufacturer warrantyiSpring standard 1-year limited manufacturer warranty (stated on sibling WGB listings); paid 3/5/10-year extended warranties offered on the product page. 30-day money-back.
Certifications	Not statedNo NSF/ANSI or other third-party certification is stated on the product page or in the WGB series manual. The page says only 'Independent lab testing proves that iSpring FC25B carbon block filter removes significantly more chlorine than other leading brands' (no lab or standard named). WQA certified-product search (find.wqa.org) returned zero results for 'iSpring', 'iSpring Water', '123Filter', 'WGB32B' and 'RCC7AK' on 2026-10-06 (a control search for 'Culligan' returned listings). NSF certified-product database (info.nsf.org), searched 2026-10-06: iSpring Water Systems LLC (Cumming, GA) is listed only under NSF/ANSI 58 (RO systems) and NSF/ANSI/CAN 372 (WSP ...ARJ spin-down variants). WGB22B does not appear.
Dimensions	16 x 8 x 28 in.
Weight	30 lb
Price	$370 at iSpring as of Oct 2026

Published features

2-stage 20 in. x 4.5 in. 'Big Blue' housings
5-micron gradient sediment pre-filter
Coconut-shell carbon block for up to 99% chlorine reduction (maker claim)
100,000 gallon / 12-month cartridge life
Up to 15 GPM, 1 in. NPT
No power or drain

Pros and cons

Pros

100,000-gallon capacity at a lower price than the 3-stage WGB32B
Standard 20 in. cartridges

Cons

Carbon and sediment only; no iron, manganese, sulfur or bacteria treatment
1-year warranty; no certifications stated

Our take

The WGB22B gives you the 100,000-gallon capacity of the three-stage WGB32B for about $150 less by dropping the second carbon block, which is the right call for a clean-testing well that just needs sediment and taste control. It is the wrong buy if your test shows iron, manganese, sulfur or bacteria; look at the WGB32BM or a tank-style iron filter instead.

Not sure it is the right size for your flow and your water test? Work through the sizing guide, or compare every system we cover on the best well water filtration systems (2026) list.

Where to buy

$370 at iSpring as of Oct 2026. Prices change; the links open the current listing.