Watts GTS-550 RO System Replacement Prefilter and Postfilter Kit
Watts GTS-550 RO System Replacement Prefilter and Postfilter Kit provides a one year supply of replacement water filters for your Watts GTS-500 reverse osmosis water filter system. These 4 filters can be used to as direct replacement water filter set for the the Costco Premier Reverse Osmosis Water Filtration System, Costco item #191483.
Note Membrane sold separately and is replace every 2-3 years.
|1||Sediment Prefilter 5 micron|
|2||Carbon Block Prefilter|
|1||Inline GAC Postfilter 1/4" FPT|
Note: Remove fittings from existing In-Line postfilter and install on new In-Line filter using teflon tape.