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Deal.ai › Berkey › Countertop Water Filters
Berkey
Berkey Big Berkey Gravity-Fed Water Filter System

Berkey Big Berkey Gravity-Fed Water Filter System

4.8(22 ratings)

Best price now

$249.99at eBayVerified

32% under what the other stores charge

Compared across 5 stores. Prices are checked against each store and labelled with when.

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Our take on the Berkey Big Berkey Gravity-Fed Water Filter System

The Big Berkey is a gravity-fed countertop filter built from 304 stainless steel, holding 2.25 gallons and running on two Black Berkey elements rated for 3,000 gallons each. It needs no plumbing or power, so it works at home, off-grid or on the road, and it suits households of one to four people. The best new price is $249.99 at eBay as of November 6, 2026, with four stores listing it new.

Best forHouseholds of 1–4 people wanting filtered water without plumbingOff-grid, cabin and emergency water setupsPeople filtering from wells, rain or uncertain sourcesReplacing bottled water at home
Pros
  • No plumbing or electricity: gravity does the work
  • Two Black Berkey elements rated 3,000 gallons each
  • 304 stainless steel body is durable and easy to wipe down
  • 2.25-gallon upper and lower tanks refill a household's bottles
  • Works from nearly any water source, not just treated tap
Cons
  • Slow gravity flow; refilling a full tank takes time
  • 25 lb filled, so it is heavy to move once full
  • Elements need periodic priming, scrubbing and re-priming
  • Tall 19.25-inch body needs counter clearance above it
  • Replacement elements add cost over the years

Berkey Big Berkey Gravity-Fed Water Filter System prices at every store

  • WalmartNew

    In stockSold by SAFECASTLEReturns: Sold by a Walmart Marketplace seller; returns go to the seller under the seller's returns policy.

    $367.00Free shippingVerified
    Visit store
  • Big Berkey Water Filter SystemsNew

    In stockReturn policy

    $367.00Verified
    Visit store
  • eBayOpen box

    Availability unknownSold by sharkfinrider7 (99.5% positive, 1,200 ratings)Returns: Set by the eBay seller; the eBay Money Back Guarantee covers an item that doesn't arrive or isn't as described.

    $189.00Free shippingVerified
    Visit store
  • eBayNew

    Availability unknownSold by iaqsupply (100% positive, 12,800 ratings)Returns: Set by the eBay seller; the eBay Money Back Guarantee covers an item that doesn't arrive or isn't as described.

    $249.99Free shippingVerified
    Visit store
  • AmazonNew

    Availability unknown

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

    $367.00Free shippingObserved at 7:06 AM
    Visit store
  • PoshmarkNew

    Availability unknown

    $600.00Observed at 7:33 AM
    Visit store

Also available at

  • eBayCheck price at eBay
  • WalmartCheck price at Walmart

Berkey Big Berkey Gravity-Fed Water Filter System price history

Lowest price we've seen: $269.99 on Nov 6 at eBay. Tracked across 4 stores since Nov 6.

What reviewers say

  • 4.8 / 522 ratings

Owners rate it highly, at 4.8 out of 5 from 22 ratings, and most praise the taste of the water and the fact that it runs without power. Complaints center on slow flow and the upkeep of the elements.

What people mention
  • Water tastePraisedOwners say the filtered water tastes clean and noticeably better than tap.
  • No power neededPraisedBuyers value that it works during outages and off-grid without electricity.
  • Build qualityPraisedThe stainless steel body is described as solid and long-lasting.
  • Flow speedCriticisedUsers find the gravity drip slow, especially when the upper tank is full.
  • MaintenanceMixedPriming and scrubbing the Black Berkey elements is seen as necessary but tedious.
  • WeightCriticisedAt 25 lb filled, it is awkward to lift or reposition.
Reviews
  • I live with the Big Berkey Gravity-Fed Water Filter - Reviewedreviewed.com

About the Berkey Big Berkey Gravity-Fed Water Filter System

The Big Berkey BK4X2-BB provides great tasting purified water for your whole household to enjoy. This water filter system can provided clean water for 1-4 people per day. The sleek, durable stainless steel design is perfect for inside the home or out in the woods. You can fill up your reusable water bottle, which saves you money because you will not need to purchase plastic water bottles. This system also helps the environment by reducing the amount of plastic waste being tossed out. Purchase your Berkey water filter system today!

Specifications

Depth
11"
Height
19.25 in (fully assembled)
Width
8.25 in
Installation Type
Countertop
Water Capacity
2.25 gallons (8.5 liters)
Water Source
Nearly any source of water
Filter Type
Black Berkey® Elements

Questions and answers

How much water does the Big Berkey hold?
2.25 gallons (8.5 liters) between the upper and lower tanks. Berkey rates it for 1–4 people per day.
How long do the filters last?
Each Black Berkey element is rated for 3,000 gallons. The system uses two, so plan on replacing them roughly every few years for a small household.
Does it need electricity or plumbing?
No. It is gravity-fed, so you fill the top tank and water drips through the elements into the lower tank.
What water sources can it handle?
Berkey says nearly any source, including tap, well and rainwater. It is not a desalinator and should not be used on seawater.
What comes in the box?
The stainless steel system, two Black Berkey elements, a spigot and a filter priming starter kit.
Is $249.99 a good price?
That is the best new price across four stores as of November 6, 2026. Check the price history to see whether it has sold lower.
Where is the Berkey Big Berkey Gravity-Fed Water Filter System cheapest?
At eBay, for $249.99, 32% under what the other stores charge, as of our latest check.
What do buyers say about the Berkey Big Berkey Gravity-Fed Water Filter System?
Rated 4.8 out of 5 from 22 ratings.
Where can I buy the Berkey Big Berkey Gravity-Fed Water Filter System?
5 stores we checked sell it, including Poshmark, Amazon, Walmart, Big Berkey Water Filter Systems, eBay.

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All Berkey deals and products →
Filter Life
3,000 gallons/cartridge
Design Type
Water Filter System
Loading Type
Gravity-fed
Color
Silver
Dimensions
Fully assembled height: 19.25 in, Diameter: 8.25 in
Style
Countertop
Material
304 stainless steel
Tank Capacity
2.25 gallons (8.5 liters)
Exterior Material
304 stainless steel
Interior Material
stainless steel
Environment
On the road, At home, Off-grid situations
Typical Users
1 – 4 People
size
1-PackSource
Capacity
2.25 GallonsSource
Diameter
8.5 in.Source
Storage dimensions
13 x 8.5 in.Source
Weight (empty)
7 lb.Source