GrowoniX GXM-1000-HR High Rejection RO Membrane
The GrowoniX GXM-1000-HR is a custom-rolled, cold-water RO membrane built for the cleanest possible water. As a High Rejection element, it trades some flow rate for ultra-high rejection and lower TDS output. It is the 4" x 21", 1000 GPD-class element for the EX1000, EX1000-T, and GX1000. The ultra-low-energy design runs at 80 PSI. That makes it strong for cold feed water.
High Rejection vs High Flow for EX/GX1000 Systems
Choose HR over the High Flow version when output purity matters more than fill speed. The HF element pushes 97% rejection at 42 GPH; the HR element pushes rejection higher and flows slower. These hand-rolled, American-made membranes suit cold sources where standard elements stall. Swap it when your TDS creep climbs. It drops into the 1000-series membrane housing.
Key Features
- High Rejection Element: Ultra-high rejection for the lowest-TDS output water.
- Custom-Rolled Cold-Water Membrane: Hand-rolled in the USA for cold feed sources.
- 4" x 21", 1000 GPD Class: Fits the EX1000, EX1000-T, and GX1000.
- 80 PSI Ultra-Low-Energy Design: Strong rejection without high feed pressure.
- Trade-Off vs High Flow: Higher purity than the 97% HF element, at a lower flow rate.
Technical Specifications
| Specification | Value |
|---|---|
| Model / SKU | GXM-1000-HR |
| Type | High Rejection (HR) RO membrane |
| Membrane Size | 4" x 21" |
| Flow Rate Class | 1000 GPD |
| Fits in System | EX1000, EX1000-T, GX1000 |
| Operating Pressure | 80 PSI (ultra-low-energy) |
| Water Type | Cold water, custom rolled |
| Weight | 5 lb |