Filtering chloramine requires catalytic carbon. In addition, it requires contact time / surface area with the filter. It's unlikely that you will get a showerhead filter that will deliver the desired results.

To give you a comparison - a shower is 2.0 to 2.5 gallons per minute flow. A reputable filter with a 2 gpm flow is 10"x 4.6" and is $50 for the filter itself - plus the housing.

Consider if you really need a filter for chloramines on your shower. If so, consider a whole house filter. I typically say not to use whole-house filters and instead filter drinking water.

The filter that you linked to or any filter connected to the shower itself cannot filter out chloramine because there is not enough filter and water contact time in a shower, correct?

What I linked to was a filter cartridge that goes in a standard filter holder (10" Big Blue holder).

That filter has a service rate of 2 gpm and a max flow rate of 4 gpm- which should provide enough flow for a shower that is 1.8-2.5 gpm.

The point is, that's a pretty big filter. You aren't going to get a filter that's shower head sized that will actually do what you are asking.

I don't see that filter as a solution - since there's no way to install it without doing some creative plumbing.

If you search "diy shower filter" on Youtube, you will see a video posted by okraw on how to install a filter like the one you listed. But some commenters for this video say that this filter won't work for a shower because there is not enough contact time between the filter and the water in a shower.

Did look at the video. So, evidently there are some people who would put up with that in their shower. I wouldn't. That setup would greatly reduce the chloramine in the shower. The service rate for the filter that I linked to is 2 gpm. Without running any tests myself, I trust the manufacturer of the filter to know what they are doing.

Look, you are probably talking to the wrong person. I have no problem with a carbon filter to clean up some drinking water for taste, odor and some chemicals (just in case). I have one that's KDF/Carbon on my drinking water. That said... I also think that trying to drink (or shower in) pure water is nonsense. Nothing we consume is pure and we are exposed to a ton of chemicals in every aspect of our lives. What's more, much of it has prolonged our lifespan and kept us free from waterborne diseases and such.

We are really, really terrible about assessing relative risk: The example I give is the co-worker who was complaining about the chemical residue on apples. She was a smoker... and that was dramatically more detrimental to her health than chemical residue on her apples. I'm not a proponent of pesticides, but the reality is that large numbers of people have access to high quality fruits and veggies year around, in part, because of modern farming.

You can get sucked into a rabbit hole if you start reading about residential water chemistry on the web. Virtually none of what you are reading is factual/supported with data/backed by epidemiological studies. I am much more concerned about private wells and small municipal water systems than I am of chloramines. I'm also much more concerned about lead in older municipal systems.

Thanks for the lengthy response.

I don't know how reliable the evidence is about the health hazards of chloramine, chlorine, fluoride, etc. in our drinking and bathing water, but there is a lot of worry about these chemicals understandably. So it would be best to filter them out if possible just in case because they are so nasty. It just depends on how much of them are absorbed by the body which may not have been measured accurately yet.

I'm not sure it's a good idea to have faith in manufacturers' claims about the effectiveness of their filters because so many filters fail testing, and companies are quite naughty.

In the early 90’s, there was a tv show, Northern Exposure. The show as about people who had issues, there was a year that delt with toxics.

I wonder if you think, dealing with health hazards that are unknown, is advantageous to living ones life.

Oh, I know what you mean!!! I have a filter system in my basement and it can't handle the chlorine. Because of this, I needed to install a drinking water filter in the kitchen, and I installed a chloramine shower head in the shower room! It's been working great for over a year now!

Seriously? You came on here to spam us a with a showerhead that somewhat vaguely claims to "reduce chlorine" (doesn't actually make any claims for chloramine, despite its name) AND dispenses vitamin C. OK then....

This is an excellent illustration of the kind of nonsense that goes on.

But Jake wait, there's more. It also stimulates enzyme activities, improves metabolism, promotes digestion and nutrient absorption, and enhances disease resistance. Heck, it might even prevent COVID-19. What BS!