We have always carried  salt free water softeners, but now there is a new kid on the block: 

Salt-Free Water Softener / Conditioner

Maintenace Free 100% Scale Removal  Enviromentally Friendly

This water softening system represents the highest in environmentally conscious water softenin g/ conditioning. It  doesn't  add chemicals to the  water.  And it doesn't remove the healthful minerals.

It does not use water for backwashing or regeneration and it does not require electricity for operation.  Get more details here:  ==>

 NaturSoft Salt Free Water Softeners