I am not positive, but think I saw the same shower heads "plural" you are talking about at Home Depot and Lowes. It is expensive but does have a filter. Good Luck and let me know if I am wrong. My favorite hang out those two stores. If I had it to do over again I would have been a contractor.
I have only seen one style at Whole Foods and my little local health food store...I too am looking for more information or selection. I need a new one anyhow as my current is only utilizing about 60% of its outflow holes....
Hmmm hard to evaluate...the huge more expenive aquasana filter says it does 10000 gallons and the little one 15000....more research necessary to evaluate....
Went to Aquasana and it says it got the best buy rating from Consumers in 2007....better price than last site too....does anyone here use one?!?!?! Aquasana
Found these reviews on Amazon....mixed comments...Aquasana Reviews But many says they are much better than those cheaper ones from Home Depot and Lowes....
This message has been edited. Last edited by: GreenAlice,
We had one from homedepot which was about $18 I think, their cheapest one. It cleared up my dandruff and dry skin. The only thing is it's really only good for a regular shower head. I like the shower wand type head and after a couple of months the filter broke from the stress of picking up and putting back the shower wand. Now I want to buy the one that has the filter in the handle but they are quite expensive.
I am not positive, but think I saw the same shower heads "plural" you are talking about at Home Depot and Lowes. It is expensive but does have a filter. Good Luck 
