Weddell Duo Genuine Shower Filter Replacement Cartridge, NSF Certifed (1+1) | Fits Weddell Duo only, easy tool-free twist-on install, reduces chlorine, NSF certified

We lived in an apartment complex where the water was very sus to say the least, this thing worked so well we could feel/smell/see the difference. EXTREMELY easy set up, you do not have to be a plumber I did this myself and I’m a 38 year old lady. Switching out filters is easy peasy. Get it, you won’t regret it.

Love this filter!!! I’ve had it only 3 weeks and have noticed a major difference in how my hair feels softer and healthier. Although, now I’m concerned about the quality of city water we are using at our house. After three weeks our filters needed to be changed. This is the comparison of the filter I just replaced only after just three weeks! I’ll continue to use this filter attachment without a doubt because it’s obviously doing its job! I am going to get my water tested now to be sure we are supplied clean water. I love that you can change the filters without having to remove the shower head and that you can see the results being it’s transparent.

After moving from Florida to Texas, I could not believe how much harder the water is here. I honestly did not think a shower filter would make much of a difference until I saw everything it was catching. The amount of buildup trapped in the filter after a short time was shocking, and the picture speaks for itself. It's so easy to install that anyone can do it; super functional, although a bit bulky and it does ruin my shower's appearance a little. Since installing it, my skin feels noticeably softer, I do not get nearly as dry after hot showers, and I have even noticed less hair falling out while washing it. Installation took just a few minutes, and the quality feels great for the price. This has been one of those purchases where I was skeptical at first, but after using it, I would not want to shower without it.

It works well. Installation is incredibly simple like other reviewers have also commented. The filters run out in about 4 months and need replacement and that’s when it gets a little pricey. I like the fact that it does its job well and is not too much of a hassle but I do think it’s an expensive option when you consider the filter replacement cost of every four months

I really like the shower filter overall but wish the filters lasted longer than 6 weeks total. I have to replace the white filter every 2 weeks, which adds up after a while. But I can tell a larger difference in bacteria/mold growth in the shower. Which helps to not have to clean the shower nearly as much.

These are a lifesaver!-We absolutely love these! Installation is a breeze and I immediately noticed my hair and skin being less flaky and more soft. The size doesn't bother us although it may be an eye sore to other people looking for a more modern look or people who want to conceal the filter as it filters. If you have hard water, you will definitely need this product to limit just how much is coming through the shower. We will continue to buy these filters until we move into our home. I simply won't take a shower without them.

Arguably the best shower filter on the market. You’ll notice cleaner immediately

I have been using this filter for several years now with no problems. Because of heavy sediment where I live, I'd have to replace the blue filter cartridges every 3 weeks or water pressure would drop. I recently bought new cartridges in May of 2026. After installing the new cartridges, my water pressure was non-existent --- it was acting like I was using a month old cartridge rather than a brand new one. I contacted Weddell, who played dumb and pretended this was an issue they never heard of. They wanted me to check my connections, etc. I even took off my showerhead and soaked it in vinegar thinking that might be the problem --- only to realize it wasn't since my water pressure restored without the Weddell filter. I then looked on Amazon, and saw others having the same exact problem with low water pressure recently of course. So Weddell sent me replacements on the theory I got a bad batch. Here's a surprise....the replacements were just as bad as the bad ones I had ordered in May. I also noticed there is zero identification on the filter cartridge box to identify what manufacturing batch it came from. So they've changed their manufacturing process to save money, and are playing dumb about it. Additionally, as at least one other reviewer mentioned, I noticed that these dud filters have a bunch of material in them that rattle when your shake them which I never heard before with the working cartridges. I mentioned this to Weddell. The first person I emailed said that wasn't normal. The second person said it was normal. The second person was lying. Additionally, the shady Weddell is using AI to send some of their email responses, so you don't know if you're talking to a human or some computer --- and the AI responses are flat out lies. Stay away from this now shady company. Someone must have taken them over and changed the manufacturing process to save money.

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I'm happy with my pursage so far. It does it's work

Les filtres fonctionnent correctement mais n'est pas non plus "amazing!" dans sa capacité à filtrer le chlore dans les 6 mois max d utilisation. Il faudrait que les filtres soit plus abordable niveau prix pour que ça ça reste intéressant vu la vitesse à laquelle il faudrait changer les filtres pour que cela reste optimum. Pour l autre filtre, le blanc, il semble bien attraper des particules ( je peux qu avoir un avis par rapport au changements de coloration du filtre),il jaunit vite et fonce dans le temps.

Very nice product. Easy to replace filters. Skin is silky smooth. Easy installation

They work.