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Water Purifiers

Yamato Lab Water Purifiers: Purity in every drop

With our intelligent purifiers, the purest clinical lab water is just within arm’s reach. Each water purifier can help you eliminate the most notorious water contaminants, giving you the highest quality water for your assays and experiments. With Yamato lab water purifiers, you can ensure purity in every drop.

Nothing but high purity water.

In a word, Yamato Auto Pure Water Purifiers are state-of-the-art. They have undergone the most rigid performance tests, ensuring you will get nothing but high purity water after an intricate four-stage filtration process. This line’s purifiers can swiftly remove ionic and organic contaminants down to trace levels through high-purity ion exchange resins. These water purifiers also have real-time monitoring, intuitive touch-screen panels, and large capacity cartridges for your convenience.

Multipurpose & conventional.

We know you have different budgets, assay requirements, and lab sizes. That is why you have the freedom to choose from our Auto Still Water Purifiers, which have two different water purifying methods: conventional distillation and deionization by ion exchange resins. You can also choose a purification method, depending on your application requirement and water quality.

Because of the order of the treatment process, our Auto Still Water Purifiers can produce two different qualities of distilled water. WG251/1001 and WG204 distillate water after the ion exchange resin, so they produce Type II distilled water. Meanwhile, the WA511/711/731and WS201/221 distillate raw water, so they produce Type IV distilled water. All these models (except WS201/221) can produce Type I deionized water.

Pure water at a low cost.

Save on costs without compromising quality. Yamato’s Pure Line Water Purifiers are affordable with intelligent features and design. Now, you don’t have to sacrifice lab space and spend a fortune to get pure water for your assays. Use our two benchtop series, WE200 and WL200/220/220T. If you need a compact, standalone unit that can handle large volumes of deionized water, get our power-saving, economic WL100 model.

Compact and mobile.

You deserve equipment that fits your workflow and complements your lab setup. Yamato’s Labo-Cube Water Purifier is space-saving and versatile. The sleek Labo-cube purifier will fit snugly under your lab’s fume hood, a sink, or a table. You can produce Type II deionized water anywhere and anytime you want.

Auto Pure Water Purifying Equipment

Nothing but high purity water.

Minerals, particulates, and bacteria—they can't get past Yamato's Auto Pure Water Purifiers. All of our water purifier product lines make this possible through a sophisticated staged purifying process.

We have six high-performing series in this line.

  • WA series
  • WB series
  • WC series
  • WG series
  • WA400/200 series
  • WH series

Our top-of-the-line water purifier series, WA, WB, WC, and WG, use premium-quality ion exchange resins to remove particulates. These resins result in an elaborate stage filtration process with a rejection rate of more than 93% of total dissolved solids. Not only that but in the final stage, a filter removes bacteria to produce Type I deionized water.

Meanwhile, if you lack space but don't want to compromise quality, our WA, WB, WC, WG, and WA400/200 series will solve your problem. Normally these can be placed on the table and countertop. If space is limited, they can be wall-mounted or placed under the sink. Its remote set up allows the convenience of fitting them in available spaces.

Our WH water purifiers, meanwhile, are pre-assembled cartridge systems suitable for low-cost operations. They purify water in a three-stage filtration process, which can supply you with Type II and Type III water.

As you can see, you can expect a highly sophisticated filtration process in our Auto Pure Water Purifiers. We can guarantee that you will get purity in every drop.

Best features of Auto Pure Water Purifiers

Auto Pure WA series, WB series, WC series, and WG series

  • Low ownership cost
  • Produces Type I deionized water
  • Premium-quality ion exchange resin
  • Quick to change, no-tool cartridge design
  • Intuitive, user-friendly touch screen interface
  • Compact design with remote dispense option
  • Real-time quality monitoring with leak detection
  • P2.5 LPM* of 18 MΩ Type 1 reagent water on demand
  • Collects large volumes of water but low-cost consumable cartridges

Auto Pure WA400/200 series

  • Low operating cost
  • 4.0 LPM* of 18 MΩ water
  • Variety of options available
  • Produces Type I deionized water
  • Easy cartridge replacement, no tools needed
  • Compact design, can be wall-mounted or freestanding
  • Intuitive, touch screen for programmable water dispensing
  • The fully recirculating flow of water ensures quality water upon dispensing

Auto Pure WH series

  • Low-cost DI water production
  • Produces Type II and III deionized water
  • Turn-key system for low-cost, on-demand service
  • Available in 2-1/2″ and 4/1/2″ diameter configurations
  • Available in high-purity and high-capacity configurations
  • Resistivity light included for visual indication of cartridge replacement
  • Comes with an outlet isolation valve, a spanner wrench, and an associated tubing


WA series

  • General Chemistry
  • Buffer Solutions
  • Academia

WB series

  • Life Science
  • Cell Culture
  • Microbiology

WC series

  • High-Performance Liquid Chromatography (HPLC)
  • Gas Chromatography Mass Spectrometry (GC/MS)
  • Inductively Coupled Plasma Mass Spectrometry (ICP-MS)
  • Analytic Chemistry/Trace Organics

WG series

  • Genetics
  • DNA Sequencing
  • Polymerase Chain Reaction (PCR)

WH series:

WH201P and WH501P

  • Sterilizers
  • Humidification
  • Battery water filling
  • General deionization
  • Hydrogen generator
  • Glassware rinse and washer

WH201C and WH501C

  • Sterilizers
  • Chiller loops
  • Ultrasonic cleaners
  • Environmental chambers

Auto Still Water Purifying Equipment

Multipurpose & conventional

Don’t let a mediocre machine stop you from getting the results you want. Avoid delays and unnecessary setbacks in your assays with our Auto Still Water Purifiers.

The models in this line are multipurpose and conventional, perfect for an increasingly busy facility like yours. They have varying features, sizes, and water purifying methods, so you can produce your desired water type—free from the inconveniences holding you back.

We have four main models in this line:

  • High-Class Auto Still Water Purifiers - WG251/1001
  • Small Capacity Water Purifier - WG204
  • Large Capacity Water Purifiers - WA511/711/731
  • Compact Water Purifiers - WS201/221

As its name suggests, our high-class auto still water purifiers can add a sense of completion and security to your facility. These units can produce distilled and deionized water all day for washing water, general chemical analysis, reagent preparation, and high sensitivity microanalysis—all that without taking much space in your lab. They are available in either 30L or 100L storage tanks.

Want a compact unit? You will love our small-capacity water purifier. Despite its compact size, it can supply you with Type I deionized and Type II distilled water in a 20L storage tank. It even reminds you if you need to replace the consumables.

Our large capacity water purifiers are nothing but reliable for a bustling facility. You will not quickly run out of Type I deionized and Type IV distilled water, as these purifiers store pure water in 100L storage tanks. They are also fully automated—they don’t need micromanagement. You can proceed to work on your other tasks, as they do the heavy work in the background.

Meanwhile, our compact water purifiers are the perfect fit for a small facility that needs distilled water for washing instruments. Besides being sleek, you can feel secure with these water purifiers’ splash prevention design. This feature guarantees that no chemical impurities will mix with your water supply.

With their functionality and well-thought designs, our Auto Still Water Purifiers will never set you a few steps back in your tasks.

Best features of Auto Still Water Purifiers

High-Class Auto Still Water Purifier - WG251/1001

  • Multi-functional control and display panel
  • Has a membrane filter at the water feeding port
  • Produces Type I deionized and Type IV distilled water
  • Large distilled water tank with a capacity of 30L (WG251) and 100L (WG1001)
  • No overflowing water discharge because of easy-to-use slide-out type water sampling tray with drainage
  • Pre-treatment cartridge removes bacteria, trihalomethane, residual chlorine, organic and dust
  • High-performance ion-exchange resin cartridge (CPC-S, 4L) achieves high purity water with low electric conductivity and TOC

Small Capacity Water Purifier - WG204

  • Large distilled water tank with a 20L capacity
  • Has feed and drain water connectors on both sides
  • Produces Type I deionized and Type II distilled water
  • Easy-to-read display of replacement of consumables
  • Pre-treatment cartridge removes bacteria, trihalomethane, residual chlorine, organic and dust
  • High-performance ion-exchange resin cartridge (CPC-S, 4L) brings high purity water with low electric conductivity and TOC
  • Optional membrane filter at the water sampling port

Large Capacity Water Purifier - WA511/711/731

  • No-fuss replacing of ion-exchange resin cartridge
  • Easy-to-read digital display of the operation status
  • Produces Type I deionized and Type IV distilled water
  • Collects large volumes of distilled and deionized water, with a tank capacity of 100L
  • High-performance pretreatment cartridge (activated charcoal + 0.1μm hollow fiber membrane) for high-quality water
  • Anti-contamination through the 0.1μm hollow fiber membrane filter at water sampling ports
  • Low-cost method from distillation to ion exchange by selecting optional CPC-N ion exchange resin cartridge (A3 / Type 3 level)
  • Has high-performance safety devices like power leakage breaker, water leakage sensor, and water pressure reduction valve.
  • Optional water softener cartridge and UV lamp for sterilization

Compact Water Purifier - WS201/221

  • Space-saving
  • Produces Type IV distilled water
  • Large distilled water tank with a 20L capacity
  • Splash prevention design results in a stable water quality
  • Standard functions include empty boiling prevention and overheat prevention


Type I water

Required and recommended for:

  • Electrophoresis
  • Endotoxin analysis
  • Ion chromatography
  • Genetic Sequencing
  • Immunocytochemistry
  • HPLC, GC, or ICP-MS

Type II

  • Reagent preparation/Microanalysis
  • General chemical analysis
  • Noncritical solution preparation

Type IV

  • Washing water for glassware and autoclaves

Pure Line Water Purifying Equipment

Pure water at a low cost.

Your lab should have a steady supply of pure water, but it shouldn't cost you a fortune. With Yamato's Pure Line Water Purifiers, you can continuously produce deionized water at a low cost.

Pure Line Water Purifiers come in three intelligently designed models:

  • The benchtop water purifier, WE200.
  • The standard water purifiers, WL200/220/220T,
  • The standalone cartridge-type water purifier, WL100.

The WE200 is a benchtop water purifier with an integrated Reverse Osmosis (RO) membrane cartridge, which prolongs your consumables' life. That means you can expect that your unit will perform excellently in the lab as it should. Not only that, but WE200 also comes with membrane filters. These add another layer of protection for your pure water against contamination.

Our standard water purifiers, WL200/220/220T, will make your life easier. These water purifiers are compact and benchtop units. You can connect them directly to tap water, so you can continuously produce deionized water with no delays. All the models in this series also come with an anti-water leakage system. In case of a water leak, the solenoid valve will immediately shut down.

The WL100, our standalone cartridge-type water purifier, may be small, but its performance is anything but delicate. You can easily connect this water purifier to a faucet and collect large amounts of deionized water. It's also effortless to check for quality since it has a built-in voltage circuit in its water quality meter.

Whichever Pure Line Water Purifier model you choose, you can be sure to get a consistent supply of pure water—without compromising your lab budget.

Best features of Auto Still Water Purifiers

Benchtop Water Purifier – WE200

  • Space-saving
  • Lower running cost
  • Easy to operate digital display
  • Produces Type I deionized water
  • Suitable for high sensitivity trace analysis
  • Universal power supply: works with 100-240VAC
  • No-hassle water sampling by attaching to a water faucet
  • Anti-contamination water production using a membrane filter
  • Displays replacement of consumables and its exchange history
  • Zero-leakage from the electromagnetic valve at sampling water port
  • Longer life for consumables because of the Reverse Osmosis (RO) membrane cartridge set

Water Purifier WL Series - WL200/220/220T

  • Space-saving
  • Displays replacement of consumables
  • Easy to operate because of the digital display
  • Produces Type II deionized water suitable for trace analysis
  • Standard equipped with a membrane filter (WL200 and WL220)
  • No-fuss collection of deionized water, as simple as connecting to a faucet
  • WL220T has constant temperature control and a 3L pure water tank. It also delivers deionized water to the pure water tank through the electromagnetic valve.
  • Zero-leakage because of the solenoid valve at the water sampling preventing leaks from the final membrane filter.

Economical Water Purifier WL100

  • Easy to maintain
  • No AC power supply needed
  • Least impurity elution from polyethylene cartridge
  • Easily collects large amounts of deionized water with stand-alone cartridge design
  • No-fuss checking of water quality through the water quality meter’s built-in voltage circuit


Type I water

Required and recommended for:

  • Electrophoresis
  • Endotoxin analysis
  • Ion chromatography
  • Genetic Sequencing
  • Immunocytochemistry
  • HPLC, GC, or ICP-MS

Type II

  • Reagent preparation/Microanalysis
  • General chemical analysis
  • Noncritical solution preparation

Labo-Cube Water Purifying Equipment

Compact and Mobile

The Labo-Cube Water Purifier is the perfect water purifier for a growing lab that conducts high sensitivity trace analyses.

Sleek, space-saving, and mobile, you won’t have to rearrange your lab bench space again and again just to add this water purifier. You can either choose a model with rubber legs (WL320A) or movable casters (WL320B), and place it under a fume hood, sink, or table. Just set it up, and you can start producing high purity water right away.

Not only does the Labo-Cube provide you with mobility and save lab space, but its other features also add unparalleled convenience to your workflow. You can effortlessly input the right settings through an easy-to-read control panel. An LED digital display of conductivity/resistivity helps ensure your pure water is free from chemical impurities. There’s also a digital display replacement of consumables. Through this, you can easily make sure that the Labo-Cube is always at its peak performance.

In case of a water leak, the Labo-Cube will shut its feed water solenoid valve and stop supplying water immediately.

Best features of Labo-Cube Water Purifier WL320A/320B

  • Easy operating digital display
  • LED digital display of conductivity/resistivity
  • Ion-exchange to filtration water purifying method
  • Comes with a membrane filter at the water feeding port
  • Anti-water leak function, which stops water supply in case a water leak occurs
  • Displays replacement of consumables (pre-treatment cartridge, ion-exchange resin, and membrane filter)
  • Produces Type II deionized water suitable for high sensitivity trace analysis.


Type II

  • Reagent preparation/Microanalysis
  • General chemical analysis
  • Noncritical solution preparation

Lab Water Purifiers

Solutions are sensitive to contaminants, so any imbalance in the mixture invalidates the results of your experiment. Impure water contains contaminants that pose risks. As a result, water should undergo a purification process to reach a certain level of purity. Our lab water purifiers here at Yamato can help you produce ASTM Type 1, Type 2, and Type 3 water quality. Besides that, our lab water purifiers can help you with the following applications:

Buffers and reagents

A buffer corrects the pH level of any solution. On the other hand, a reagent stimulates a reaction to detect the absence or presence of other substances. Both solutions are prepared by dissolving solid reagents in pure water that are free from any substances that affect the acidity or pH level of the solutions.

Since water is a major solvent involved in creating these solutions, a deionized water system for laboratories is necessary to produce water with high levels of purity. The Yamato Auto Pure WA300 series water purifiers can remove dissolved minerals through high-purity ion exchange resins to process high-quality pure water, which is ideal for preparing both solutions.

Cell culture

Normal water contains compounds that affect cell culture which includes bacteria, endotoxin, organic ions, and organic compounds. These contaminants can cause chemical reactions, changes in pH levels, and disrupt or kill various cells.

Moreover, water is also used in producing buffers and rinsing bioreactors and other materials. Therefore, producing laboratory grade water is necessary. This is usually achieved using Yamato Auto Pure WB300 series water purifiers. These units are great in removing bacteria and particulates to reach type 1 water quality, the highest level of purity in water.

Reverse osmosis

In order to make Type 1 or Type 2 water, feed water quality is important. Reverse osmosis is used as pretreatment of raw water just before feeding it to water purifiers which can produce Type1 or Type 2 water.


Traditional method of producing purified water is distillation, which is the process of separating liquid mixtures through condensation. Academia and certain applications require the heat treated distilled water. Yamato Auto Still series water purifiers can produce distilled water.