hey i got mines from home depot too here in hawaii, mines is a round shape chrome color and it has the filter inside this shower head, my costs was $36.** and some cents, but it works nice. I guess cos here in hawaii we have tropical soft water, this shower head I dont notice much of a difference, but its good to be sure of a clean water.
I have found Softer hair and my body lotion lasts longer so far; it's only been a couple days! My son's hair is very thin and with no conditioner used in his hair it made a noticeable difference in the texture and appearance of his hair.