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Exterior Refrigerator Water Filter Compatible with Frigidaire ULTRAWF, WF3CB and 46-9999 (4706178498642)
Exterior Refrigerator Water Filter Compatible with Frigidaire ULTRAWF, WF3CB and 46-9999 (4706178498642)
Exterior Refrigerator Water Filter Compatible with Frigidaire ULTRAWF, WF3CB and 46-9999 (4706178498642)

Exterior Refrigerator Water Filter Compatible with Frigidaire ULTRAWF, WF3CB and 46-9999


69 reviews


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  • Waterdrop Undersink Water Filtration System is compatible with most refrigerators on the market and does not damage your refrigerator.
  • This system adopts advanced five-stage filtration to effectively reduce lead, chlorine, taste and odor, sediment, fluoride, rust, arsenic, and other heavy metals.
  • With the filtration capacity of 16,000 gallons, you only need to replace the undersink water filter every 24 months.
  • This system is more affordable than a refrigerator filter. On average, you will spend only $13 per year (3¢ per day) for the filter replacement.
  • With accessories to connect to the refrigerator or ice maker, you can easily get filtered ice water and crystal ice with better taste than refrigerator filtered water.
Model number
Product dimensions
 3.6” * 16.7”
System cover: BPA-free plastic
Faucet: metal
>Filter: Polyester membrane Activated carbon block KDF
Item weight
3.41 lb
Can I use this system with well water?
If your home already has a whole-house filter, then the system can work perfectly with well water.
Can the system reduce TDS?
TDS stands for total dissolved solids and is basically composed of inorganic salts and a small amount of organic matter. The system can reduce harmful substances while keeping beneficial trace elements, though it is not designed for significant TDS removal. Please choose Waterdrop RO system if you’d like to reduce TDS.
Can this system inhibit bacteria?
This system adopts advanced KDF, which effectively inhibits the growth of bacteria. If you are looking specifically for bacteria removal from this system, you will want to check out the UF collection, which is designed to reduce bacteria. With a pore size of 0.01 μm, the system can effectively reduce most contaminants, ensuring clean, safe, and healthy purified water. Please click here to find the one that’s right for you!
What is the filter service life?
WD-RF15: 24 months/16,000 gallons
Where can I buy a replacement filter?
Click here to purchase replacement filters.
Can this system replace my refrigerator filter?
With WD-UC, the system can connect to your refrigerator/icemaker and replace your overpriced refrigerator filter. With a filtration accuracy of 0.5 μm, this inline water filter achieves excellent filtration performance, extended filter life, and lower replacement costs.
What is the water pressure?
Waterdrop Undersink Water Filtration System is built to handle a great deal of pressure and is designed to be installed on cold water lines only. In general, the water pressure in homes should be around 60psi. The recommended water pressure is between 10-125 psi.
Perfect substitute
Perfect substitute
  • Waterdrop Undersink Water Filtration System is compatible with refrigerators on the market.
  • Compared to refrigerator filters, our system has better filtration performance, longer service life, and lower maintenance costs.
  • The system does not damage your refrigerator.
Better filtration
  • With a filtration accuracy of 0.5 μm, this under sink water filter system reduces lead, chlorine, taste and odor, sediment, fluoride, rust, arsenic, and other heavy metals.
  • The system also retains minerals that are essential to your body, such as potassium, calcium, sodium, and magnesium.
Better filtration
Longer service life
Longer service life
  • With a filtration capacity of 16,000 gallons, Waterdrop Undersink Water Filtration System delivers safe filtered water all day long.
  • Compared to refrigerator filters that need to change every 6 months, you only need to replace the undersink water filter every 24 months, which is more convenient and cost-effective.
Less future
replacement cost
  • On average, you only cost 3¢ per day for two years.
  • Compared to refrigerator filters, this inline water filter uses advanced technology to reduce cost.
Less future replacement cost
Simple installation
Simple installation
  • Easy installation takes only 3 minutes.
  • Replacing the filter takes only 3 seconds.
  • The push-to-connect fittings make installation easier, saving you time and effort.

The Waterdrop exterior refrigerator water filter is compatible with following model numbers:

ULTRAWF, WF3CB, 25370313211, 85075-SGP-001, 253.7031321, FFHS2611PF, FGHB2844LF, FGHC2342LF, FGHC2331PF, FGHC2331PF0, FGHC2331PFO, FGHB2844LF5, FGHB2866PF, FGHC2342LF3, FGHC2331PF6, FGHS2644KF, FGHS2631PF2, FGHS2355PF, FGHS2631PH, FGHS2655PF, FFHN2740PS0, FPHS2386LF7, FPHB2899LFB, FPUS2686LF0, FPHB2899LF4, FPHS2687KF0, FGHS2631PH, LGHC2342LFO, LGHB2867PF2, LGHC2342LF3, PN242086201.
46-9999, 242017800,242017801, PS2364646, A0094E28261.

*The following claims have not been tested and certified by NSF: compatibility claims.
The above statement is accordance with the NSF General Policy 25. Please note the certification information is only applicable to Waterdrop, not representing other brands on this page.

**The above brands do not source or sponsor the water filter. The manufacturers' names and model numbers have been used for reference purposes only.
The manufacturer is HongKong Ecoaqua Co., Limited. Made in P.R.C

Customer Reviews
4.8 Based on 69 Reviews
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Filter Reviews:
Ronald S.
made water very good tasting.

Easy installation and water tasted much better.

Efficient and space saving

Switching from a 5 stage bulky filtration system to this was amazing. I��m saving money and space and it tastes just as good.

Works great but this thing is huge

Awesome filter. Noticeable difference in taste after installing. I'm in Arizona and we have the worst tasting water known to mankind. The water is bearable after installing this filter. It's not RO quality but I don't have the ability to connect my fridge to my RO system so this was the next best thing. I like the fact that this filter should last 2 years and costs the same as 1 factory refrigerator filter would have. It produces better tasting water then the factory filter in my fridge did even though they are the same manufacture. My only complaint is the size. My refrigerator now protrudes several inches further away from the wall. Given the location of my fridge, the gap is very visible. I quickly got use to it. This is the only reason I gave it 4 stars... definitely 5 stars otherwise.

Great little water Filter. Love It!

Go this for under the kitchen sink to replace the old dual cartridge 'Omni' filter I had, which was such a Pain to unscrew the housings and change filters. With this one, the filter and housing are all on piece. Just shove it in and give it a quarter turn to lock it in. No special wrench and no water spilling all over. So simple!

And So inexpensive too. The cartridges last 2 years and are $35 here on Amazon, but I actually found replacements on a wholesale filter website for only $25. They even make a 3 year cartridge for just 10 bucks more. Takes up way less space than my old filter and the water flow is great. I can't believe it took so long for someone to come up with this design, but Thank You!!!

Good buy and finally fit

Tried a couple of water filters, none of them fit my kitchen. Finally, this one worked with easy installation and water coming back with big volume and good taste. No regrets getting this one!