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Culligan FM-25 Faucet vs Wingsol Faucet (WS-FM001-PAC) Side-by-Side Comparison

On the fence about whether to pick the Culligan FM-25 or the Wingsol (WS-FM001-PAC) faucet-mount water filter? This comparison can help!

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Two faucet-mount water faucets, the Culligan FM-25 Faucet and Wingsol Faucet (WS-FM001-PAC), held side-by-side by a reviewer for comparison purposes.

Overall Verdict

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The Culligan FM-25 is a better buy than the Wingsol faucet filter (WS-FM001-PAC). Besides having much better build quality, the filtering action of the Culligan is stronger, too.

In our chlorine test, the Culligan FM-25 neutralized all traces of chlorine from the flow of high-chlorinated water that we pumped through it. The Wingsol, on the other hand, left a small amount of chlorine that our kit can still detect. It’s one of two filters in our list that didn’t have a perfect score in the chlorine filtering section.

As a result, while it’s a lot more expensive than the Wingsol, the Culligan FM-25 will still be a better option if you have a roomy budget to spare. But if not, more attractive budget-friendly options are available, such as the Waterdrop WD-FC-01.

Pros & Cons

  • Excellent chlorine filtering ability with a near-100% filtration rate.
  • Good build quality, premium materials.
  • The locking collar fixes the filter solidly to the tap, preventing it from wiggling around.
  • The push/pull routing valve is easy to use. Automatically reset after the tap is shut off.
  • Replacement filters are cheap, easy to find.
  • Durable stainless steel construction
  • Easy installation with slip-on, rotating collar
  • The handle for the routing valve is easy to use
  • Comes with up to 9 faucet adapters to fit different types of faucets
  • Very low flow rate in filtration mode (0.5 GPM).
  • The filter of our unit leaked during testing.
  • Filtering performance is lower than other models we tested
  • We found rusting within the inner components of the filter, despite it being made from stainless steel

Key Specs

Dimensions
L3 x W4.5 x H3.5 inches
0.9 GPM
Weight
1.1 lbs (0.5 kg)
320 gals
Capacity
200 gals
NSF/ANSI Standard 42 and 53
Qualifications
NSF/ANSI Standard 42 and 53
L5 x W2.7 x H5 inches
Filtering flow rate
0.5 GPM
1.4 pounds
Warranty
2 years
1-year

Where to Buy

Price at publication
$40.27
$41.69

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Analysis and Test Results

Performance

Overall Performance Scoring
7.0
9.2

Chlorine Test

10
9.5
The Culligan FM-25 filter mounted on a tap. To its left is the testing result pad with two activated test strips.
Two testing kits overlaid on the color pad showing the test results. One from the control sample (left) and one from the filtered water sample (right).
The Culligan FM-25 filter mounted on a tap. To its left is the testing result pad with two activated test strips.
Culligan FM-25 Faucet Mount Filter Chlorine Test 3
The Wingsol WS-FM001 filter is mounted on a faucet. To the left is the color pad with activated test strips.
Two activated water testing strips on the result color pad. The strip to the left is from the control sample, and the strip to the right is from the filtered water sample.
The Wingsol WS-FM001 filter is mounted on a faucet. To the left is the color pad with activated test strips.
Wingsol Faucet Water Filter Chlorine Test
Before
10+ mg/l
10+ mg/l
After
~0 mg/l
~0.1 - 0.5 mg/l

Flow Rate Test

5.0
9.0
Duration
20 secs
20 secs
Amount
0.172 gallons
0.3 gallons
Flow Rate
0.5 GPM
0.9 GPM

Design

Overall Design Scoring
8.3
7.9

In the Box

The glossy housing of the Culligan FM-25 faucet-mount water filter next to its shipping box, adapters, and paperwork.
The glossy housing of the Culligan FM-25 faucet-mount water filter next to its shipping box, adapters, and paperwork.
Two faucet adapters made from white plastic with black rubber seals at the top
The full content of the Wingsol WS-FM001’s shipping box.

Dimensions

Culligan FM-25 Faucet Mount Filter Dimensions
The dimensions of the Wingsol WS-FM001 filter. Its length is 5 inches, width 2.7 inches, and height 5 inches.
Length
3.0" (7.6 cm)
5.0" (12.7 cm)
Width
4.5" (11.4 cm)
2.7" (6.9 cm)
Height
3.5" (8.9 cm)
5.0" (12.7 cm)
Weight
1.1 lbs (0.5 kg)
1.4 lbs (0.6 kg)

Build Quality

8.3
7.2
The Culligan FM-25 filter’s side profile, showing its large filter compartment, slip-on collar, and routing valve’s knob.
The Culligan FM-25 filter’s side profile, showing its large filter compartment, slip-on collar, and routing valve’s knob.
The main filter nozzle of the Culligan FM-25, with the “Remove Before Installing” sticker removed.
The silver, metallic Wingsol WS-FM001 faucet-mount water filter is laid on a grey table.
The silver, metallic Wingsol WS-FM001 faucet-mount water filter is laid on a grey table.
The two nozzles of the Wingsol WS-FM001 faucet-mount water filter.

Filter Piece

8.0
8.0
The filter piece of the Culligan FM-25 faucet-mount water filter, with white plastic casing and chrome-plated end piece.
The filter piece that comes with the Culligan FM-25.
The Powdered Activated Carbon (PAC) filter block of the Wingsol WS-FM001 water filter.
Filter Model
Culligan FM-25R and FM-25RA
WS-FM001-PAC replacement filter
Filtration Process
Activated Carbon and Ionization Filtration
Powdered Activated Carbon
Certifications
ANSI Standard 42 and 53
ANSI Standard 42 and 53
Filter Capacity
200 gallons
320 gallons

Routing Valve

10
10
A close-up view of the push-pull routing valve on the side of the Culligan FM-25 faucet-mount water filter.
A close-up view of the push-pull routing valve on the side of the Culligan FM-25 faucet-mount water filter.
A top-down view of the mounting collar of the Culligan FM-25 along with the push-pull routing valve.
The rotating handle of the Wingsol WS-FM001 water filter’s routing valve.
Type of Valve
Push/pull
Rotating

Usability

Overall Usability Scoring
9.8
9.7

Installation

10
10
The Culligan FM-25 faucet-mount water faucet with a faucet adapter attached to the filter’s mounting port.
The filter with a faucet adapter attached to the mounting port.
A metal faucet adapter is fixed onto the mount of the Wingsol WS-FM001.

Ease of Use

10
9.0

Leak

10
10

Maintenance

8.0
10
The Culligan FM-25 faucet-mount water filter next to the Culligan FM-25R filter piece.
The Culligan FM-25 faucet-mount water filter next to the Culligan FM-25R filter piece.
An upside down FM-25R filter piece, with chrome-plated end piece and housing made from white plastic.
The PAC filter block alongside the many disassembled pieces of the Wingsol WS-FM001 water filter.
Filter Indicator
N/A
N/A
Replacement
2 months
6 months