Hydron / Hydronix - Reliable Brackish RO Membranes for Commercial & Industrial Use
Hydronix Water Technology - Smart Filtration Built on Performance & Affordability
Hydron / Hydronix is a trusted name in the global water treatment industry, known for designing and manufacturing cost-effective, high-performance brackish reverse osmosis (RO) membranes for commercial and industrial systems. With a focus on innovation, quality, and value, Hydronix membranes deliver consistent water purity across diverse water sources.
At AMPAC Water Systems, we offer a complete line of Hydronix RO membrane elements designed to treat brackish water with medium to high salinity. Whether you're designing a new system or upgrading an existing plant, Hydronix membranes ensure efficient and sustainable water recovery.
Hydronix RO Membranes Available at AMPAC Water Systems
Brackish Water RO Membranes
| Model | Size | Capacity (Nominal GPD) | Application Use | Product Link |
|---|---|---|---|---|
| BW-4040 | 4" x 40" | Up to 2,400 GPD | Commercial RO systems, light industrial setups | View Product |
| HLP-4021 | 4" x 21" | ~1,000 GPD | Small-scale brackish water RO systems | View Product |
| HLP-2521 | 2.5" x 21" | ~400-500 GPD | Compact and residential RO systems | View Product |
Key Features of Hydronix Brackish RO Membranes
- Optimized for medium TDS brackish water (up to 8,000 ppm)
- Thin Film Composite (TFC) construction for high rejection rates
- Operates at low pressure, reducing energy consumption
- Excellent fouling resistance and durability
- Long service life in commercial and industrial applications
- Easy to retrofit into existing 2.5" and 4" RO membrane housings
Applications & Benefits
| Common Applications | Why Choose Hydronix from AMPAC Water Systems? |
|---|---|
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Need Assistance with Hydronix Membranes?
If you're unsure which Hydronix membrane fits your system, our engineers are ready to assist with sizing, compatibility, and installation advice.
Request a QuoteHydronix and Hydron filter cartridges at AMPAC
AMPAC stocks Hydronix and Hydron sediment and carbon block filter cartridges and housings for residential and commercial RO systems. These filters handle pre-treatment ahead of the RO membrane, removing sediment, chlorine, and organic compounds that would otherwise foul or damage the membrane over time.
Hydronix and Hydron cartridges are available in standard industry housing sizes, making them a straightforward swap for systems already built around these dimensions. Matching the correct micron rating and filter type to your feed water conditions is the biggest factor in filter performance and replacement interval.
Not sure which Hydronix or Hydron cartridge fits your housing? Call (385) 530-1026 with your current filter's dimensions and we will confirm the right replacement.
Hydron or Hydronix? They are two different things
The names get mixed up constantly, so here is the short version. Hydron makes reverse osmosis membrane elements. AMPAC's brackish RO membranes are built with Toray and Hydron elements, and those are the products listed on this page. Hydronix is a separate brand, known for sediment and carbon block filter cartridges. AMPAC does not stock Hydronix-branded cartridges, but it does make its own in the same standard sizes, so they drop into the same housings.
Brackish RO membrane elements AMPAC supplies
Four element sizes, product code APRO300, made in the USA, using Toray or Hydron elements. Pick the size your pressure vessel takes.
| Element size | Typical use | Product |
|---|---|---|
| 2.5″ × 21″ | Small commercial systems, test skids | Brackish RO membrane 2.5″ × 21″ |
| 4″ × 21″ | Compact commercial systems | Brackish RO membrane 4″ × 21″ |
| 4″ × 40″ | The common commercial and light industrial size | Brackish RO membrane 4″ × 40″ |
| 8″ × 40″ | Industrial and municipal trains | Brackish RO membrane 8″ × 40″ |
Brackish elements are built for feed water in the 1,000 to 10,000 ppm TDS range. Above that, seawater elements do the job instead. See the brackish water RO range, all membrane elements, or Toray membranes.
Looking for Hydronix-style filter cartridges?
Cartridge sizes are an industry standard, so a 10-inch or Big Blue cartridge fits any housing built for that format regardless of who made it. AMPAC's own cartridges cover the same sizes:
- 10″ GAC coconut shell carbon and 10″ Big Blue GAC
- Sediment cartridges in 5 and 20 micron, in 10″ and 20″ lengths
- 10″ alkaline cartridge and the inline alkaline filter
- How to choose a sediment filter by micron rating
Common questions
Are Hydron and Hydronix the same company?
No. Hydron manufactures RO membrane elements, which is what the membranes on this page are built with. Hydronix is a filter cartridge brand. The similar names cause a lot of confusion.
Will an AMPAC cartridge fit a housing built for another brand?
If the size matches, yes. A 10-inch cartridge fits a 10-inch housing, and a 4″ × 10″ Big Blue cartridge fits a Big Blue housing. Match the length, the diameter and the micron rating, and check whether your housing needs a double open end or a closed end.
How long does a brackish RO membrane last?
Two to five years is the usual range, but feed water, pretreatment and cleaning discipline decide it. Hard, high-TDS water shortens membrane life when scale control slips, which matters in Utah, where supply water runs 10 to 18 grains per gallon: see water treatment in Utah.
Which element size do I need?
It is set by your pressure vessel, not by preference. Read the size off the vessel or the old element, and match it. If you are unsure, send a photo of the label and the system model to (385) 530-1026 or request a quote.