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💧 Elevate your home’s water game—because clean water is the new luxury.
The Express Water Kinetic Degradation Fluxion Replacement Filter is a high-capacity, whole house water filter cartridge (4.5” x 20”) engineered to reduce heavy metals and impurities using catalytic carbon and ionically charged copper-zinc granules. Designed for easy replacement, it supports up to 100,000 gallons or 6–12 months of filtration, maintaining water pressure while protecting appliances from scale and rust. Certified by ANSI and NSF, it ensures cleaner, better-tasting water from every tap in your home.










| ASIN | B01LW9ACTQ |
| Best Sellers Rank | #25,746 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #180 in Replacement Under-Sink Water Filters |
| Brand | EXPRESS WATER |
| Brand Name | EXPRESS WATER |
| Compatible Water Purifier Models | Express Water FLTWH2045K |
| Customer Reviews | 4.4 out of 5 stars 322 Reviews |
| EU Spare Part Availability Duration | 6 Months |
| External Testing Certification | ANSI, NSF |
| Global Trade Identification Number | 00641990965674 |
| Included Components | Kinetic Degradation Fluxion KDF filter |
| Item Dimensions D x W x H | 4.5"D x 20"W x 4.5"H |
| Item Type Name | Kinetic Degradation Fluxion – KDF Catalytic Carbon Large Capacity Water Filter – Whole House Heavy Metal Filtration – 4.5” x 20” inch |
| Item Weight | 6 Pounds |
| Manufacturer | Express Water Incorporated |
| Manufacturer Part Number | FLTWH2045K |
| Material | Carbon,Copper,Metal,Zinc |
| Material Type | Carbon,Copper,Metal,Zinc |
| Model Number | FLTWH2045K |
| Number of Items | 1 |
| Product Benefits | Reduces harmful impurities, improves water quality and taste, extends appliance life, provides clean water for various household uses Product Benefits Reduces harmful impurities, improves water quality and taste, extends appliance life, provides clean water for various household uses See more |
| Product Dimensions | 4.5"D x 20"W x 4.5"H |
| Set Name | Kinetic Degradation Fluxion |
| UPC | 641990965674 |
| Unit Count | 1.0 Count |
D**2
Solved my Water Issues!
I have purchased four of these in past as I run two of these in a three filter Express Water system with a sediment filter as first filter. This filter completely cleaned up my water. I had a lot of orange rust/iron stains in tub, sinks, appliances, etc. as well as the sulphur smell. We have a deep water well and a lot of minerals in it. The water now has zero smell, zero taste and all staining is gone. This is at our river cabin that we use and also rent. We have had nothing but rave reviews on how great the water from renters. I also think the water feels softer when we shower. Not cheap as I wish it was less, but they seem to last six months no problem and beats running a water softener that will be destroyed in two years with our water condition.
L**.
system works great
I have the entire heavy metal 3 stage filter system. Have really bad well water with very high iron in the water. Installed this system Jan 21, system has worked great right up to June 1 21. No break through of red iron, but now loosing house water pressure across the 3 filters. 25 PSI difference now and can notice drop in pressure in showers. Filters must be getting loaded up, been 5 months with really bad water. I will take that. going to get on 5 month change out cycle and all we be great. Very impressed with the system, did not think I was going to even get 5 months so I am happy. Recommend purchasing if you have water problems.
H**S
Quality Filter Makes A Difference
Make a huge difference in water quality. You notice a change immediately. Zero concerns people using water to rinse off food or for drinking
D**R
Fine
Works fine, I get three mos out of it wher we are
H**G
Right refill
Right refill
A**S
Yes, finally!
Our well produces a lot of iron. We were tired of everything being orange. It helped clear up our water.
C**O
No kdf material inside
I've been buying these filters since 2018 and they used to work great. Lately they have not been able to fix my iron issue like they did in the past. I even tried a different brand then added a second one of these filters in line. Still no luck. That lead me to researchig that you can just buy the KDF85 material yourself and buy a refillable filter cartridge to make your own. Curiousity got to me so I opened up one of these filters and was shocked to find it full of just carbon, I didn't see a single bit of kdf material like it advertises to have. I do believe at one point they did contain kdf85 because before they removed iron in the past. I'll just be filling my own cartridges from now on, half the cost and I know what's inside.
S**S
Works as advertised, surprisingly recyclable
I buy these regularly to remove large amounts of iron dissolved in water. It works great and levels are negligible after this single filter. They seem to come with a "refillable" canister that I have been recycling into activated charcoal filters.
J**N
Very Effective and long lasting
We use this as the 3rd filter in our whole home 3 filter system, and it definitely is the filter that makes the most noticeable difference in terms of chlorine taste reduction. The standard carbon based filters work well with most odors, but these KDF are exceptional and very long lasting.
S**D
Installation réussie, à voir sur la durée
Je viens d'installer ce filtre KDF en complément de mon système pour toute la maison. Le format 4,5" x 20" (11,4 x 50,8 cm) est imposant et semble de très bonne facture. L'installation s'est faite sans problème. Pour l'instant, l'eau est claire et n'a plus d'odeur, mais c'est l'avenir qui nous dira si la capacité annoncée tient ses promesses. Premier ressenti positif !
D**0
seem good
these KDF filters seem good have some weight to them close to 7lbs if I remember right I don't have iron or any heavy metal I know of in my city water so I can't say how well they work for that but seem to be a good addition just incase since I have four bb canisters to fill
K**N
fantastic
great price
K**N
Reliable parts
Replacing filters are identical to original, a bit pricey though
Trustpilot
2 days ago
1 month ago