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What it is
A shower head with a replaceable filter cartridge inside it. Water passes through KDF media and a carbon stage before it reaches the spray, which takes out chlorine, sediment, rust and the smell that comes with them. It does not soften water. Nothing that screws onto a shower arm does.
How to Use
1. Unscrew the old head by hand. 2. Wrap the thread twice with the tape supplied. 3. Screw this one on and hand-tighten. Two minutes, no tools, nothing permanent. Change the cartridge about every three months. It twists out from the outside of the housing, so scale has nothing to seize against.
Shipping and returns
Free shipping in the US. 1 to 3 business days to pack, then 6 to 12 business days in transit, with tracking emailed when it leaves. That is slower than a marketplace and it is the honest number. 60 days to send it back for a full refund. The cartridge can be used, the box can be open, and there is no return fee.