Reverse Osmosis Simplified: Introducing Brio SIMPL Undersink Filtration Systems

 

What is Reverse Osmosis and Why Does it Matter?

Reverse osmosis (RO) is one of the most effective filtration methods for drinking water. During the RO process, pressure forces water through a semipermeable membrane with pores just 0.0001 micron wide to remove contaminants. Experts call the “dirty” water that’s routed down the drain brine, concentrate, or wastewater; the purified water is called permeate or product water.

 

Brio SIMPL Reverse Osmosis Systems remove up to 99.97% of contaminants, including:

 

•    Rust, sand, and other sediment
•    Chlorine and unpleasant tastes
•    Heavy metals like lead and arsenic
•    PFAS, aka “forever chemicals”
•    Perchlorate and chromium-6 (hexavalent chromium)
•    Volatile organic compounds (VOCs)
•    Microbial cysts and parasites
•    Bacteria and viruses

 

The result? Water that’s safer, cleaner, and better tasting. It’s perfect for drinking, cooking, filling reusable bottles, or making coffee or tea. If you’re concerned about tap water quality, RO offers peace of mind you won’t get from basic filter systems.

 

Meet the Brio SIMPL Reverse Osmosis Filtration System: Reverse Osmosis that Fits Your Life

SIMPL really is simple. The flexible PE (polyethylene) inlet tube hooks up to your cold water supply under your kitchen sink. Another PE tube connects to the drain pipe to discard the brine, and a third brings purified water to your SIMPL faucet.

 

Brio SIMPL Reverse Osmosis Filtration Systems give you all the benefits of RO water without bulky tanks, complicated maintenance, or excess wastewater. In fact, at 5.2” wide x 13.7” high x 14” deep, they’re smaller than the average desktop PC tower.

 

Here’s what sets SIMPL apart:

 

•    Compact, tankless design: Fits under most sinks with room to spare.
•    Quick-change filters: No tools, no guesswork. Twist, swap, done.
•    Long filter life: The PAC filter lasts up to 12 months, and the RO membrane up to 24 

      months (depending on the water source).
•    Efficient performance: Low pure-to-drain ratio reduces wastewater.
•    Installation kit and faucet included: No extra parts needed.

 

All SIMPL systems use a 4-in-2 filter system to remove a wide range of contaminants.

 

 

What is 4-2 Filtration?

Brio’s 4-in-2 filtration combines four filtration stages in just two cartridges. It’s an efficient design that simplifies maintenance while delivering strong performance.

Here’s how it works:

 

Filter 1: PAC Filter

The PAC filter handles the first three stages using sediment, carbon fiber, and high-density filters. It traps dirt and rust, reduces chlorine and odors, and captures fine silt and volatile organic compounds (VOCs).

Filter 2: The Reverse Osmosis Membrane

The final stage uses a high-precision RO membrane with pores just 0.0001 microns in size to remove dissolved solids, heavy metals like lead and arsenic, bacteria, viruses, and other contaminants that other filters can’t capture.

The 4-in-2 system is perfect if you want high-level filtration without the complexity of multiple filter cartridges.

What Does GPD Mean, and Which System Should You Choose?

Each Brio SIMPL system has a different flow rate measured in GPD (gallons per day): 400, 600, or 800. Because the system is tankless, it filters on demand. GPD simply tells you how much filtered water it can produce daily and how fast the filtered water flows.

 

But How do You Choose?

 

Household Type	Approx. Filtered Water Use/Day	Suggested Model
1–2 people (light to moderate use)	1 - 2 gallons/day	400 GPD
3–5 people or moderate daily use	2 - 5 gallons/day	600 GPD
5+ people or high use (cooking, bottles, pets)	5 - 8+ gallons/day	800 GPD

If your kitchen is a hub of activity — refilling bottles, brewing tea or coffee, cooking often — a higher GPD model means faster flow and less downtime. It’s all about how much water you use and how fast you want it.

 

Water Savings and Sustainability

Old-school RO systems can waste three to five cups for every cup you drink. Brio SIMPL systems are far more efficient:

 

•    400 GPD: 1:1 ratio = 1 cup waste per 1 cup filtered
•    600 GPD: 1.5:1 ratio = 1 cup waste per 1.5 cups filtered
•    800 GPD: 2:1 ratio = 1 cup of waste per 2 cups filtered

 

That adds up to real savings on your water bill and environmental impact.

 

 

What's in the Box?

Each Brio SIMPL system comes with everything you need for setup:

 

•    Filtration unit
•    Dedicated faucet
•    Pre-installed filters
•    All required hoses and connectors
•    Installation kit

 

Installation requires only basic tools: a variable-speed drill, wrench, screwdriver, safety glasses, plumber’s tape, and a bucket. You can do it yourself or hire a pro for a quick, worry-free setup. Once installed, only the faucet is visible, while everything else stays tucked out of sight.

 

 

Brio SIMPL: Is it Right for You?

A Brio SIMPL system is a great fit if:

 

•    You want better-tasting water for drinking and cooking.
•    You’re concerned about contaminants in your local water.
•    You prefer low-maintenance systems with minimal waste.
•    You’re tired of buying bottled water or using filter pitchers.
•    You want to save space and keep your kitchen uncluttered.
•    You’re looking for value and long-term savings by cutting the cost of single-use              plastic water bottles and water bottle delivery services.

 

Whether you’re health-conscious, eco-conscious, or just want more convenience, a Brio SIMPL system is a smart upgrade.

Ready to Simplify Your Water?

Looking to replace a pitcher, upgrade your current filtration setup, or simply enjoy cleaner, better-tasting water? Brio SIMPL Reverse Osmosis Systems make it easy to take the next step. Pure water. Compact system. No guesswork. That’s SIMPL.

Shop and compare Brio SIMPL Tankless RO Undersink Filtration Systems to find your perfect water filtration system today.