Replacement filters for our ProSeries EZ Twist Filters, the PuroTwist PT-4000 Reverse Osmosis Filters, these are the easy, simple filter set replacements.  These filters need to be changed every year in order to keep your system working properly and your water filtered.

The set includes:
(1) Q5605 Sediment Filter
(2) Q5633 Carbon Filters

Optional 50 GPD membrane can be added and should be changed every three years.