
Watts Premier (105331) RO PURE 50 GPD Membrane
Core Performance Data
Membrane Specifications
| Manufacturer | Watts Premier |
| Model Number | 105331 |
| Production Rate | 50 gallons per day (GPD) |
| Membrane Technology | Thin-film composite (TFC) semi-permeable |
| Contaminants Reduced | Arsenic, lead, nitrates, perchlorate, chromium, copper, TDS, Giardia, Cryptosporidium |
| Recommended Replacement | Every 2–5 years based on water conditions |
| Installation | Easy drop-in replacement, no special tools required |
System Fitment
The Watts Premier 105331 membrane is engineered specifically for the RO-PURE and WP-RO4 reverse osmosis systems. This membrane will not fit Watts 1/4 Turn KWIK Change filter housings or other manufacturer systems. It is designed for residential point-of-use applications where municipal or well water requires reduction of dissolved solids, heavy metals like lead and arsenic, and microbiological cysts. Ideal for under-sink installations in homes, small offices, and light commercial settings where daily water consumption does not exceed 50 gallons.
Core Performance Data
Membrane Specifications
| Manufacturer | Watts Premier |
| Model Number | 105331 |
| Production Rate | 50 gallons per day (GPD) |
| Membrane Technology | Thin-film composite (TFC) semi-permeable |
| Contaminants Reduced | Arsenic, lead, nitrates, perchlorate, chromium, copper, TDS, Giardia, Cryptosporidium |
| Recommended Replacement | Every 2–5 years based on water conditions |
| Installation | Easy drop-in replacement, no special tools required |
System Fitment
The Watts Premier 105331 membrane is engineered specifically for the RO-PURE and WP-RO4 reverse osmosis systems. This membrane will not fit Watts 1/4 Turn KWIK Change filter housings or other manufacturer systems. It is designed for residential point-of-use applications where municipal or well water requires reduction of dissolved solids, heavy metals like lead and arsenic, and microbiological cysts. Ideal for under-sink installations in homes, small offices, and light commercial settings where daily water consumption does not exceed 50 gallons.
Original: $131.28
-65%$131.28
$45.95Description
Core Performance Data
Membrane Specifications
| Manufacturer | Watts Premier |
| Model Number | 105331 |
| Production Rate | 50 gallons per day (GPD) |
| Membrane Technology | Thin-film composite (TFC) semi-permeable |
| Contaminants Reduced | Arsenic, lead, nitrates, perchlorate, chromium, copper, TDS, Giardia, Cryptosporidium |
| Recommended Replacement | Every 2–5 years based on water conditions |
| Installation | Easy drop-in replacement, no special tools required |
System Fitment
The Watts Premier 105331 membrane is engineered specifically for the RO-PURE and WP-RO4 reverse osmosis systems. This membrane will not fit Watts 1/4 Turn KWIK Change filter housings or other manufacturer systems. It is designed for residential point-of-use applications where municipal or well water requires reduction of dissolved solids, heavy metals like lead and arsenic, and microbiological cysts. Ideal for under-sink installations in homes, small offices, and light commercial settings where daily water consumption does not exceed 50 gallons.





