PuROTwist 4 Stage undersink Reverse Osmosis Water Filter Systems

The top-selling PuROTwist PT4000 RO system is a 4 stage, point-of-use Reverse Osmosis unit that treats water at 50 gallons per day. PuROTwist Reverse Osmosis Water Filter Systems offer the highest in quality and performance standards, high-capacity output, automatic shut-off and the user-friendly Twist Tap (Omnipure) filters. To replace the filters, simply twist the used filter off and twist the new filter on. No tools, no buckets, no mess.