Growonix High Rejection RM Membrane - 1000 GPD

Cleaner Reverse Osmosis Water for Nutrient Mixing - 1000 GPD Rated

Dissolved minerals in source water make nutrient recipes harder to control and can shift from one batch to the next. The Growonix High Rejection RM Membrane is a reverse osmosis element built to remove more of those dissolved solids, so you start with cleaner permeate. It trades some flow for higher rejection compared with a High Flow element of the same series.

This single membrane is rated at 1000 GPD and suits growers who place water quality ahead of throughput: indoor cultivators with a dedicated reverse osmosis unit, and commercial rooms that need a consistent baseline for feed water. Sold each, it works as a direct replacement when your current element has declined.

Key Features & Benefits

• High rejection design — removes more dissolved solids for cleaner water.
• 1000 GPD rating — sized for mid to high volume hydroponic water treatment.
• Replacement format — restores performance in a compatible reverse osmosis system without replacing the whole unit.
• Sold each — order one element per system or stock spares.

Who Should Use Growonix High Rejection RM Membrane

Choose it if you run a compatible Growonix reverse osmosis system and want the cleanest water your system can produce. If your priority is filling reservoirs quickly, the High Flow version of this series may fit better.

About Growonix High Rejection RM Membrane

Growonix makes reverse osmosis and water treatment equipment for hydroponic growers. The RM Membrane is offered in High Rejection and High Flow versions so growers can match the element to their flow and water quality needs. This listing is the High Rejection version, sold as one unit.

Frequently Asked Questions

Q: What is the difference between High Rejection and High Flow?
A: High Rejection elements remove more dissolved solids but pass water at a lower rate. High Flow elements produce more water with slightly less rejection. Pick based on whether purity or volume matters more in your room.

Q: What does GPD mean?
A: GPD stands for gallons per day, the rated volume of permeate a membrane can produce under standard test conditions. Real output depends on feed pressure, temperature and water quality.

Q: Will it fit my system?
A: Membranes are sized for specific housings, so check your system model and manual before ordering. Confirm that your unit uses this 1000 GPD element size.

Q: How many membranes are included?
A: One. The listing is sold each.

Q: Why choose cleaner water for nutrient mixing?
A: Starting with low-mineral water gives you a predictable baseline, so your nutrient additions determine the final solution rather than whatever is in the source water.