Shower water softener (Doylestown)

Shower water softener from WaterSticks (their website is very informative). Basically, this attaches where the shower head is and softens your hard water before it reaches you. Additionally, in the bag is a KDF filter for chlorine. Together, the system effectively removes hard water minerals like calcium and magnesium that cause dry skin and hair, and chlorine. Everything you need from test kits to plumbers tape is in the bag so you can get softened water up and running in your shower.

I used this system when I was renting in Philly and it made a huge difference for me.