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GlacierFresh PC04 Gravity Water Filter vs Waterdrop King Tank

Buy the GlacierFresh if you want a complete stainless gravity system at a low price: $54.99 at GlacierFresh as of November 6, 2026, versus $239.99 at Amazon for the Waterdrop King Tank. The King Tank wins on long-run filter cost, since its carbon and fluoride filters are rated for up to 6,000 and 1,000 gallons per pair. Most households that filter a few gallons a day will save money with the GlacierFresh over the first years.

Today the GlacierFresh PC04 Gravity Water Filter costs $185.00 less at its best price.

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GlacierFresh
GlacierFresh 2.25 Gallon Gravity Water Filter System

GlacierFresh PC04 Gravity Water Filter

GlacierFresh 2.25 Gallon Gravity Water Filter System

4.9(111 ratings)
$54.99at GlacierFresh®
Observed at 7:05 AM
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Choose the GlacierFresh if you want a full gravity filter system with a stainless tank, a filter-life indicator and a low upfront price.

Pros
  • Lowest upfront price of the two by a wide margin
  • 3-gallon total capacity means fewer refills
  • Filter-life percentage display on the lid
  • No power or plumbing; usable during outages
  • Stainless steel body with cited NSF/SGS certifications
Cons
  • Filter rated for only about 200 gallons or 3 months
  • Buyers report the tank rusting inside
  • Slow spigot stream and brief dripping after filling
  • Replacement filters reported backordered for weeks
  • Lid knob sits about 5mm high, which can block under-cabinet fit
Waterdrop
Waterdrop King Tank

Waterdrop King Tank

$239.99at AmazonObserved at 7:05 AM
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Choose the Waterdrop King Tank if you filter heavily and want filter pairs rated for thousands of gallons instead of about 200.

Pros
  • Filter pairs rated for up to 6,000 gallons (carbon) and 1,000 gallons (fluoride)
  • Chlorine reduction stated up to 98.95%
  • Separate fluoride stage you can manage on its own schedule
  • Gravity-fed, so no electricity needed
  • Works in a 40-100°F range
Cons
  • $239.99 upfront, about $185 more than the GlacierFresh
  • Only 2.25 gallons of capacity
  • Only one store prices it new
  • No filter-life indicator listed
  • No flow rate published

What separates them

GlacierFresh PC04 Gravity Water FilterWaterdrop King Tank
Price$54.99 at GlacierFresh as of November 6, 2026$239.99 at Amazon as of November 6, 2026
Stated filter capacityAbout 200 gallons or 3 months per filterCarbon up to 6,000 gallons, fluoride up to 1,000 gallons per pair
Tank capacity3 gallons total, about 2.25 gal upper tank plus 0.8 gal reserve2.25 gallons
Flow rateUp to 2 gallons per hour by gravityGravity-fed; no rate published
Contaminant claimsMulti-stage reduction of microplastics, chlorine, fluoride, heavy metals, sediment; NSF/SGS 42, 53, 401, 372 citedChlorine reduction up to 98.95%, plus a fluoride filter stage
Filter life indicatorPercentage display on the lidNot listed
Build304 stainless steel exterior, food-grade internalsTank system with separate carbon and fluoride filters
Power and plumbingNone needed; works in outagesNone needed; works in outages

Price history

  • GlacierFresh PC04 Gravity Water Filter: lowest $169.99 on Nov 6 at Amazon.
  • Waterdrop King Tank: lowest $239.99 on Nov 6 at Amazon.

Prices at every store

GlacierFresh PC04 Gravity Water Filter

  • GlacierFresh®New

    In stockReturn policy

    $54.99Observed at 7:05 AM
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  • Camping WorldNew

    In stock

    $259.00Free shippingObserved at 7:34 AM
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  • eBayNew

    In stockSold by matthewals-3

    $282.99Free shippingObserved at 7:34 AM
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  • AmazonNew

    Availability unknown

    As an Amazon Associate, Deal.ai earns from qualifying purchases.

    $169.99Free shippingObserved at 6:51 AM
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All 4 stores and price history →

Waterdrop King Tank

  • eBayPre-owned

    Availability unknown

    $179.99Free shippingObserved at 7:34 AM
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  • AmazonNew

    Availability unknown

    As an Amazon Associate, Deal.ai earns from qualifying purchases.

    $239.99Free shippingObserved at 7:05 AM
    Visit store

Also available at

  • eBayCheck price at eBay
All 2 stores and price history →

Specs compared

SpecGlacierFresh PC04 Gravity Water FilterWaterdrop King Tank
Water TemperatureAmbient—
Width13.58 in wide—
Filter Life3 mths filter life—
Model Number—WD-Tank-King-F+S
System Capacity—2.25 gallons
Carbon Filter Capacity—Up to 6,000 gallons/pair
Fluoride Filter Capacity—Up to 1,000 gallons/pair
Operating Temperature—40-100°F (4-37°C)
Chlorine Reduction—up to 98.95%

What reviewers say

GlacierFresh PC04 Gravity Water Filter

  • 4.9 / 5111 ratings

Buyers rate it 4.9 out of 5 from 111 ratings and mostly praise the clean taste, easy setup and sturdy steel build. Complaints center on slow flow, hard-to-find replacement filters and rust inside the tank over time.

What people mention
  • TastePraisedOwners say the water tastes clean and fresh with no chlorine smell, though a few note a faint chlorine or metallic taste early on.
  • SetupPraisedBuyers describe assembly and setup as quick and easy.
  • BuildMixedThe stainless steel body is called sturdy and good-looking, but some owners report rust inside the tank.
  • Flow rateCriticisedThe spigot stream is described as slow or weak, and it drips briefly after filling a bottle.

Questions and answers

Which is cheaper over the first year?
The GlacierFresh. At $54.99 it costs far less upfront, and its filters last about 3 months, so you would buy roughly four a year. The King Tank's $239.99 price only pays off if you keep it for years and use its long-life filter pairs.
Which lasts longer between filter changes?
The Waterdrop King Tank. Its carbon filter pair is rated up to 6,000 gallons and its fluoride pair up to 1,000 gallons, against about 200 gallons or 3 months for the GlacierFresh filter.
Which holds more water?
The GlacierFresh. It holds 3 gallons total, about 2.25 gallons in the upper tank plus about 0.8 gallons of filtered reserve. The King Tank holds 2.25 gallons.
Does either need electricity?
No. Both are gravity-fed and work during power outages. The GlacierFresh states a flow rate of up to 2 gallons per hour; Waterdrop does not publish one.
Is the King Tank worth the extra money?
Only for heavy use. If you filter many gallons a week and plan to keep the system for years, its long-life filters can offset the higher price. For light use or a rental, the GlacierFresh is the better buy.
Which removes more?
On paper the GlacierFresh lists more: microplastics, chlorine, fluoride, heavy metals and sediment, with NSF/SGS 42, 53, 401 and 372 cited. The King Tank states chlorine reduction up to 98.95% and adds a dedicated fluoride filter.

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