A 4-stage reverse osmosis system gives you truly clean water. Here’s how it works: Stage 1 uses sediment pre-filtration to grab particles, rust, and dirt. Stage 2, an activated carbon block, takes out chlorine, VOCs, and other organic compounds, which protects the important membrane. Then, Stage 3’s RO membrane (it’s super fine, at 0.0001 µm) removes 90-99% of impurities. Reverse osmosis is a smart way to handle water quality issues, and AMPAC USA builds commercial and industrial systems specifically for these needs, with proven, certified results.
What you drink matters. The water we put into our bodies directly affects our health. With more pollution and changing lifestyles, it’s easy for drinking water to get contaminated. That’s why people worldwide have been investing in good water purifiers with advanced Reverse Osmosistechnology. But with so many choices out there, how do you find a brand you can really trust?
Ampac USA: We’re a name you can trust.
We’re one of the oldest makers of advanced ROwater purifiers. AMPAC USA means quality products and great service. We use the latest tech to give you tough, efficient, and affordable drinking water systems. With over 20 years in the business, you can count on us.
Ampac USA 4-Stage Reverse Osmosis System:
We’ve created another fantastic water filter system that uses Reverse Osmosis to make sure you and your family have pure drinking water. This filter uses a simple water desalinationconcept. It’s got a 4-stage filter, a 3.2-gallon water storage tank, a water feed adapter, a drain saddle valve, and a lead-free chrome faucet. If you need it, we can even add a high-flow delivery pump. The 4-stage system does this:
- It filters out sediments, dirt, sand, and other physical stuff down to 5 microns.
- It removes chemicals and makes your water clearer.
- It performs Reverse Osmosis, where it gets rid of a huge majority- 93-95% of dissolved salts.
- It takes away bad odors and gives your water a great taste.
All that from just one ROsystem filter!
Now you can stop worrying about your drinking water. With this 4-Stage Reverse Osmosis System, you’re sure to get quality drinking water for your family.
Frequently Asked Questions
What contaminants does an AMPAC USA 4-stage reverse osmosis system remove?
An AMPAC USA 4-stage reverse osmosis system provides progressive multi-barrier treatment. It removes sediment, rust, and particles in Stage 1; chlorine, VOCs, and organic compounds in Stage 2; 90-99% of dissolved salts and impurities through its 0.0001 µm RO membrane in Stage 3; and eliminates odors while improving taste in Stage 4.
How does AMPAC USA ensure the quality and reliability of its reverse osmosis systems?
AMPAC USA has over 30 years of experience designing and manufacturing commercial and industrial RO systems, with installations across 150+ countries including offshore oil rigs and military bases. Our engineers leverage direct field experience to create durable, efficient, and economically viable systems with certified, documented performance, ensuring reliable water purification.
What is the filtration process of AMPAC USA’s 4-stage RO system?
The AMPAC USA 4-stage system filters water through four distinct barriers. First, sediment pre-filtration removes particles up to 5 microns. Second, an activated carbon block removes chemicals like chlorine. Third, the RO membrane clears 93-95% of dissolved salts. Finally, a post-filter eliminates odors and enhances water taste.
What is the pore size of the RO membrane in AMPAC USA’s 4-stage system and what does it remove?
The advanced RO membrane in AMPAC USA’s 4-stage system has an ultra-fine pore size of 0.0001 µm. This allows it to effectively remove 90-99% of dissolved salts, heavy metals, bacteria, viruses, and other microscopic impurities, ensuring highly purified drinking water.
What standard components are included with an AMPAC USA 4-stage reverse osmosis system?
The AMPAC USA 4-stage reverse osmosis system typically includes a 3.2-gallon water storage tank, a water feed adapter, a drain saddle valve, and a lead-free chrome faucet. For specific applications, a high-flow delivery pump can also be included to meet demand.
AMPAC USA engineers custom water purification systems for commercial, industrial, and emergency applications — from 500 GPD to multi-million GPD. Trusted by municipalities, military, and industry worldwide.

