PuROTwist PT3000 CTA 18 GPD Three Stage RO System


The PuROTwist PT3000 Reverse Osmosis Water Filter Systems offers the highest quality in performance standards, high capacity output, automatic shut-off and the user-friendly Twist Tap (Omnipure Q-Series) filters. To replace the filters simply twist the used filter off and twist the new filter on. No tools, no buckets, no mess. This 3-stage, point-of-use RO system is designed to filter 18 gallons per day. But with the change in membrane, this systems can now handle 50 gallons per day!  NOTE: Replacement bundles are now available to make filter replacements simple (see below).


***ATTENTION: The 18 gallon per day CTA Membrane for this system is NO LONGER AVAILABLE. Please now use the recommended replacement filters stages listed below for continual use of your system.***



  • STAGE 1 – Carbon Block Pre-Filter (Q5621) – Replace Every 12 Months
    - OR -
    STAGE 1 – Carbon Block 1 Micron with Chloramine Reduction (Q5629) – Replace Every 12 Months
  • STAGE 2 – RO Membrane TFC 50 GPD (TQ56-50FC) – Replace Every 24 Months
  • STAGE 3 – Carbon GAC Post Filter (Q5633) – Replace Every 12 Months

*Note: 1 Year Replacement Kits do not include the Q5629 1 Micron Carbon Block with Chloramine Reduction filters


PDF iconPT3000 Brochure

PDF iconPuROTwist PT3000 Series Manual

PDF iconPuROTwist Filter Change Instructions