The Watts Premier RO Pure RO-4 Reverse Osmosis System uses quick change filters eliminating the mess and difficulty associated with filter changes. There are check valves installed in the manifold between cartridges to prevent back-flow and shut off valves in each filter head that shuts off the water flow when cartridges are removed.

Features:

• Cartridges connect and disconnect with the push of a button
  
• Filter housings are eliminated. No mess during cartridge replacement
  
• Internal valves shut off flow when cartridges are removed
  
• Cartridges have double o-rings so they won't leak
  
• Compact design, so the unit requires less space below your sink
  
• All components are an integral part of the unit, requiring fewer tube connections
  
• Back-flow prevention valves are installed between the elements
  
• Includes a chrome top mount air gap faucet and 3 gallon storage tank

CONSUMER NOTE: We recommend the Watts Premier RO Pure Plus Reverse Osmosis System for a better and more effective water filtration system. For just an additional $10, you will receive the extra security and peace of mind in knowing that your water is even safer to drink; and the additional applications amount to a $50 increase in value!