The AXEON® NL-Pro 4,000 Reverse Osmosis System produces 4,000 gallons per day on 115V single-phase power. Engineered for high-capacity commercial water purification, the NL-Pro 4,000 delivers dependable dissolved solids reduction for restaurants, laboratories, food service, light industrial operations, and commercial grow facilities.
For growers, the NL-Pro 4,000 produces near-pure feed water using AXEON HF5-Series ultra low energy membrane elements, providing a clean, consistent low-TDS baseline for nutrient programs. Pre-plumbed and assembled on a black powder coated aluminum frame with a 3/4" FNPT feed connection. Also available in 220V and in a 2,000 GPD capacity - compare all models in the spec table below.