Step 2: Remove shower arm from wall

Remove your shower arm by unscrewing it out of the wall. You may need a pipe wrench (put a bunch of tape on it so you don't scratch it all up with the pipe wrench).

Now put some teflon tape (so it won't leak) on the pipe nipple and screw it in the hole. You should have about 1 inch plus threads sticking out.
I know its an old old post.. but how is the flow rate if anyone tried it also?
The only problem with this solution is that the filter media on whole house filters is for cold water, hot water kills charcoal filters.
Great Instructable - and I see that you're also a Dr. Bronner's Peppermint soap fan - love it!
If you are going this route, I would suggest you not use the PVC type of adapter fittings. The nasty chemicals inside the PVC will leach into your shower water when the water gets hot. That means your skin will absorb lots of harmful chemicals. Go order brass or chrome adapters online from mcmaster.com. Also, since the fittings change from 1/2" to 3/4" and then back, the water pressure will be slightly inconsistent throughout your shower session. In short, I would say the cost in the long run is just slightly cheaper than getting a sprite high output shower filter, which does not require adapters and works better than these charcoal filters. The cost of the sprite replacement filter is about $15 but it'll last longer than the charcoal ones. Good luck!
I also had the problem of the water in my shower drying my skin out and making me itch. Went to home depot the other day and found a GE shower filter for $20. Its purpose made for showers, pretty small, and the filter lasts for 6 months. Its over with the pur and brita water filters. No tools need, just hand tighten everything and it works great.
Cool! I have one of these filters, but I'm going to wait until my house is built to install it.
Cool! I used to itch a lot, but that was because I had some itching disease or something...

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More by veggiecycle:Portable Solar Generator on a bike trailer for Burning Man Solar Cell Phone Charger made from old parts and an...ALTOIDS TIN ... what else?? SHOWER FILTER FOR CHEAP Bad water make you itch? Make a great Shower Filter for 1/2 of buying one 
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