Growonix 1000+ GPD Custom-rolled, High Rejection Cold Water Membrane for EX/GX-1000 and EX-1000T

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