WSP Whole House Reverse Osmosis System - Commercial, 300 GPD

Water Softener Plus (WSP) Whole House Reverse Osmosis System is designed to improve drinking or process water by reducing dissolved solids, including lead, arsenic, fluoride, nitrates, and other heavy metals. Available in four capacities, it suits a range of home and small office needs.

What’s Catching Your Plumber’s Eye at the Water Line?

When a plumber checks your water setup, one thing they notice first is the taste or smell of water that just isn’t right. You might not be thinking about it all the time, but that odd metallic taste in your coffee or a slight cloudiness in your ice cubes often signals dissolved solids in the water. These are tiny particles like salts or minerals you don’t want in drinking or process water, and they can build up in pipes and appliances without obvious signs.

How the System Knows When to Work

This reverse osmosis system uses a metered control head that keeps track of the exact amount of water used. It automatically signals when the system needs to regenerate or backwash, helping you avoid wasting water or running the filters past their prime. The built-in pressure gauge gives a clear readout of the pre-filter and membrane condition, letting you or your plumber see when maintenance is due before water quality drops.

The Treatment Inside: What’s Actually Doing the Work

Inside the system, several layers work together to reduce what’s dissolved in your water. A thin-film composite reverse osmosis membrane is the key player, designed to separate dissolved solids such as salts and heavy metals from your water. Ahead of this, a granular activated carbon filter targets chlorine, odors, and taste issues, while a 5-micron sediment filter catches particles like dirt and rust, protecting the membrane and improving overall water quality.

Tank Size and Capacity: What You’re Getting

The system includes a treatment vessel sized to fit the chosen capacity, but exact dimensions vary and are confirmed with your specific setup. Available in four daily output versions — roughly 300, 750, 900, or 1,400 gallons per day — the system can handle small to moderate household or office water demands, ensuring you have filtered water available without frequent maintenance interruptions.

Choosing the Right Size for Your Home or Office

This system fits most households looking for cleaner drinking water or small offices needing treated process water. The 300 gallons per day unit suits smaller families or lower water use, while the larger 900 and 1,400 gallon per day models support bigger households or more water-intensive applications. If your water needs exceed these, consider a larger commercial-grade system. For less water use or tighter space, a smaller under-sink option may be better suited.

What Comes with the System and What to Expect Next

This reverse osmosis system includes the control head with meter and pressure gauge, the composite RO membrane, granular activated carbon filter, and sediment filter housed in a vessel tailored to your selected capacity. Once you order online, we ship it from Tampa with free U.S. delivery. You’ll get expert sizing support if needed, plus clear installation and service manuals for your plumber to follow.

Who this size is right for

At 300 gallons per day this is sized for a household drinking-water supply or a small office.

The rated output assumes reasonable feed water and temperature. Colder or dirtier feed water lowers it, so choose a size above your true daily requirement.