Pelican Salt-Free Water Softener & Conditioner (1-3 Bathrooms) Prevents the calcium and magnesium minerals in your water from forming hard water scale in your plumbing, preventing the clogging of shower heads, faucets and loss of water pressure. The only salt free water softener certified 99.6% effective Leaves in beneficial minerals Easy to install, zero waste water & requires no electricity to operate Great for lawn and gardens; Better drinking water for pets