Lucia Wright wrote: > I also have seen shower filters advertized in the Seventh Generation > Catologue of products. > $60. seems like the average price. > Lucia Some of this smaller filter don't last to long before your water pressure diminishes greatly. I put a whole house carbon filter just before the hot water heater. It has replaceable cartridges and will be cheapest in the long run. The other advantage is you have filtered water at every hot water faucet. Of course you have to be mechanical to install it. Frank.