One of the shower filters that GE makes likes to break if there is shower head that weighs too much. I made this clip to hold the filter to the shower pipe so that adjusting the shower head will not break the filter.

http://jacksonville.com/opinion/blog/401056/charles-broward/2011-09-13/woman-sues-ge-home-depot-shower-filter-led-brain

http://products.geappliances.com/ApplProducts/Dispatcher?REQUEST=SpecPage&Sku=GXSM01HWW