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Brand: GrowoniX

Growonix 150+ GPD High Rejection Cold Water Membrane for EX100-GX400.

Growonix 150+ GPD High Rejection Cold Water Membrane for EX100-GX400.

SKU: SKU:GXM-150-HR

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This GrowoniX GXM-150-HR high rejection membrane (2x12, 150 GPD) hits 97% rejection at a 2:1 ratio for the EX200-GX400 systems, built for cold, chlorine-free feed.

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GrowoniX GXM-150-HR High Rejection RO Membrane

The GrowoniX GXM-150-HR is a custom-rolled, cold-water RO membrane in a 2" x 12" element. This High Rejection version delivers 97% rejection at a 2:1 ratio and flows about 6 gallons per hour of pure water. It is rated for 150 GPD and built from polyamide thin-film composite. It runs cold, from 50°F to 113°F. Rejection is the priority here, not raw flow.

Chlorine-Free Feed and Compatible EX/GX Systems

It fits the EX200, EX400, EX400-T, GX150, GX200, GX300, and GX400 systems. Chlorine capacity is 0 ppm, so always run dechlorinated feed water through a carbon stage first. Chlorine destroys thin-film membranes fast. Choose HR when you want the lowest TDS output and can accept a slower fill. Swap it once rejection drops off its baseline.

Key Features

  • High Rejection Element: 97% rejection at a 2:1 ratio for ultra-low TDS output.
  • 150 GPD / 6 GPH: Pure-water output sized for compact RO systems.
  • 2" x 12" Thin-Film Composite: Polyamide element, custom rolled.
  • 0 ppm Chlorine Tolerance: Requires dechlorinated feed, so run a carbon stage ahead of it.
  • 50-113°F Operating Range: Cold-water-capable design.
  • Wide System Fit: EX200, EX400, EX400-T, and GX150-GX400.

Technical Specifications

Specification Value
Model / SKU GXM-150-HR
Type High Rejection (HR) RO membrane
Membrane Size 2" x 12"
Flow Rate 150 GPD (6 GPH)
Rejection 97% at 2:1 ratio
Max Flow Rate 2 GPM
Membrane Material Polyamide thin-film composite
Chlorine Capacity 0 ppm (dechlorinated feed required)
Operating Temperature 50°F - 113°F
Fits in System EX200, EX400, EX400-T, GX150, GX200, GX300, GX400