
Optimum
3i PLUS
Electrolyte-Enhanced Hot & Cold Water Cooler
The water cooler that started it all for us. The Optimum 3i+ is a sweet combination of streamlined design and leading-edge water purification.
Most Advanced Purification Technology
On-board, multi-stage, reverse osmosis purification. Removes sediment, chlorine, bacteria and more.
CLEANCONTACT™ Anti-Microbial Touchpad
Organic anti-microbial coating helps maintain the cleanliness of touch-pad.
High Capacity

OPTIMAL DISPENSING HEIGHT & AREA
Ergonomic design for “no-bend” dispensing. Spacious dispense area for larger refillable bottles and mugs.

Industrial-Grade
Our systems are designed to last a long time while never losing its performance.

INDUSTRY-LEADING CERTIFICATIONS
The Optimum 3i+ is the most trusted product to deliver the purest, freshest-tasting water for medium to large-sized spaces.
Featuring a large, 3-gallon cold tank, it purifies and holds more water than the Optimum 2i, making it an ideal source for fresh-tasting water in larger workspaces. It keeps your office hydrated and healthy. For purification, the 3i+ uses a 5-stage purification process that removes sediment, chlorine, and bacteria while oxygenating water for the freshest taste possible.

Technical Specs
Optimum 3i Plus
Weight | 93lbs (42 kgs) |
Dimensions | 14” W x 17” D x 50.5” H (355.6mm W x 431.8mm D x 1270mm H) |
Cold Tank Capacity | 3 gallons (11 Liters) |
Hot Tank Capacity | 0.5 gallons (1.8 Liters) |
Dispense Area | 10.1” H (256mm H) |
Reverse Osmosis Membrane Capacity | 80 gallons per day |
Reccomended Water Pressure | Do not exceed 60 psi |
Rated Voltage/ Frequency | 120v/60hz | 220v/50hz |
Power Consumption | Hot: 4.0A/410W | Cold: 1.5A/110W |
PURIFICATION STAGES

The 3i+ uses a 5-stage purification process that removes sediment, chlorine, bacteria while oxygenating water for the freshest taste possible and adds electrolytes (Calcium and Magnesium) at the end.
STEP 1
Sediment Filter
STEP 2
Carbon Filter
STEP 3
Reverse Osmosis
STEP 4
Polishing Filter
STEP 5
Boost
STEP 6
Activated Oxygen

Featured Technologies
Reverse Osmosis
Reverse Osmosis
Electrolyte Boost System
Electrolyte Boost
Closed Loop
Closed Loop System
Anti Microbial Surfaces
Anti Microbial Surfaces
Advanced Display
Advanced Display
ADDITIONAL SYSTEMS

Optimum PW-2i
Cost-Effective Cold & Hot Water Cooler

Optimum PW-3i
The Original Hot & Cold Water Cooler

Optimum PW-3i Plus
Electrolyte-Enhanced Hot & Cold Water Cooler

Optimum PW-90
Industry Leading Touchless Water Purifier

Optimum PW-90CT
Industry Leading Touchless Water Purifier Countertop

Optimum WS-12000
All-in-One Water & Ice Cooler

Optimum WS-15000
All-in-One Water & Ice Cooler Countertop or Freestanding
SERVICE REVIEWS
OPTIMUM TESTIMONIALS
Denise Graham

On Ideas
The convenience factor alone makes the ig900 well worth the switch from bottled water. Add to that its all-in-one build and fresh taste and there’s really nothing like it. A definite win for everyone in the office.
Joseph Roos

Edgewell Personal Care
I want to thank all of you for the service. Edgar’s team was extremely professional and proficient. It is rare that I have the luxury of a contractor performing a service without me having to constantly correct them on safety and professionalism.
Gloria Smith

HR Employee Relations Director
Last year we had four workers’ comp claims due to lifting and replacing those heavy water jugs. And two employees slipped on spilled water from the jug change. Happy to report we have zero claims due to water this year. And everyone really loves the super chilled, fresh tasting water, too!
Donna Tibbits

Facilities Manager
We used the same water system for years, but decided to go for the free week trial. On the first day I had almost 100 emails from employees telling me how fresh and delicious the new water tasted.
Claudia Lewis-Robinson

Very friendly staff. When our system needs servicing they are there to do the job. Water is wonderful and the techs are great. Bottled water is a thing of the past! You need to try the new filtration system from them.
Aurelia Gervasi

Optimum Water Solutions is the best! From electrolyte enhanced water to ice machines, they've got everything you might want/need for your business. Plus, the units are very professional looking and the people who come to install them make sure to give you instructions on how best to operate them. All in all a great product!
Laura Bronkesh

Amazing product, service top notch. Love so much more than other delivery water services we used in the past. We don't need to haul water from my front step onto the holder. Highly recommend!
Brooke Stamas

Optimum Water Solutions is the perfect choice for our office. No more bottled water! The taste is great and the service is fantastic. Lezah Preston made the choice easy. She was informative and brief- which is important when you're busy. So far we love our unit!
Diane Brock

We like the water, ice and hot water convenience for the employees, and the satisfaction of knowing we are providing a superior alternative to tap water. Great service too!
Mark Larie

Maintenance Manager
I'm a maintenance manager for a large 3PI and I couldn't work with a better company. I use them at all my warehouse sites. They are always professional, courteous and on time. they do a very neat and professional job on the install, service and follow-ups, and are the best bunch of people to work with.
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