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International brand dossier

Kurita

Kurita is a Japanese industrial water-treatment group founded in 1949, originally around boiler water-treatment chemicals, and now one of the major global suppliers of water-treatment equipment, chemistries, and services.

Avista sits inside this operating logic as a membrane-treatment chemistry and service platform for RO/NF/MF/UF systems.Kurita's position in water treatment chemicals is defined by product families such as Antiscalant, Coagulants & Flocculants, Biocides and Liquid & Powder cleaners.

The portfolio is best understood inside RO/NF membrane operation, cooling and boiler water programs, pretreatment, cleaning, and plant reliability work, where engineers compare the technology route, family boundaries, and duty fit before narrowing to individual models.Representative series on this page include Vitec® 1000, Vitec® 1100 and Vitec® 1200.Engineers should first compare target foulants, chemical function, dosage window, compatibility, and field support.

33

Indexed models

4

Product families

0

Subgroups

Model index

Product range and selection

How to choose Kurita Chemicals

This section answers two questions: which main product families Kurita offers, and which parameters to compare before choosing a specific model.

Step 1: Choose a product family by application

The main families shown on this page are Antiscalant, Coagulants & Flocculants, Biocides, and Liquid & Powder cleaners. Start with the treatment objective, equipment format, and operating duty, then use the model index below to compare exact specifications.

Step 2: Confirm the model by key parameters

After choosing a product family, compare water analysis, dose range, compatibility, and cleaning objective. Replacement projects should also verify installation or loading conditions, interfaces, and compatibility with the existing system; new projects should consider operating practice, maintenance, and spare-parts or consumables availability.

Product family overview

4 product familys on this page.

Antiscalant

13 models in this family. Representative models: Vitec® 1000, Vitec® 1100, Vitec® 1200.

Coagulants & Flocculants

5 models in this family. Representative models: RoQuest-3000, RoQuest-4000, RoQuest-5000.

Biocides

2 models in this family. Representative models: RoCide-DB5, RoCide-DB20.

Liquid & Powder cleaners

13 models in this family. Representative models: RoClean-L211, RoClean-L403, Roclean L607.

Quick Model Index

Fast lookup for 33 indexed products

Search models, families, applications, or parameters; compare 2–4 candidates, save or export the shortlist, and open it on another device by link or QR code.

Products & documents

Showing 33 of 33 models

Select 2–4 models to compare. Your shortlist is saved on this device and can travel by link or QR code.

Ask with selected models

Vitec® 1000

Antiscalant

Typical Dose: 2-5 mg/l. A site-specific dose can be determined using Avista Advisor software · pH (10% solution): 3.0 - 5.0 · Specific Gravity (@ 20°C): 1.15 - 1.25

Vitec® 1000 is a liquid antiscalant formulated with 35% polyacrylic acid designed to inhibit scale formation in reverse osmosis feedwaters.

DetailsPDF

Vitec® 1100

Antiscalant

Typical Dose Range: 2-5 mg/l. A site-specific dose can be determined using the Avista Advisor software program · pH (as supplied): < 2.0 · Specific Gravity (25°C): 1.05-1.10

Vitec® 1100 is a liquid antiscalant designed for municipal feedwaters, inhibiting mineral scale including calcium carbonate, metal oxides, and silica.

DetailsPDF

Vitec® 1200

Antiscalant

Typical dose: 2-5 mg/l · pH (as supplied): < 2.0 · Specific Gravity (25°C): 1.05-1.15

Vitec® 1200 is a liquid antiscalant for RO/NF membrane systems designed to prevent inorganic fouling, iron, and silica scale.

DetailsPDF

Vitec® 1400

Antiscalant

pH (as supplied): 3.5 - 4.5 · Specific Gravity (25°C): 1.05-1.10 · Appearance: Clear, colorless

Vitec 1400 is a liquid antiscalant designed to inhibit inorganic fouling and scale formation in municipal feedwaters, including high hardness ground waters.

DetailsPDF

Vitec® 1500

Antiscalant

Typical Dose: 2-5 mg/l · pH (as supplied): <2.0 · Specific Gravity (25°C): 1.2-1.3

Vitec® 1500 is a liquid antiscalant designed to inhibit various scale types and stabilize metal ions in wastewater reclaim and reuse applications.

DetailsPDF

Vitec® 2000

Antiscalant

Typical dose: 2-5 mg/l · pH (as supplied): 4.5-5.5 · Specific gravity (@20°C): 1.1-1.2

Vitec® 2000 is a liquid antiscalant and dispersant designed to reduce fouling in RO and NF systems across a wide variety of feedwaters.

DetailsPDF

Vitec® 3000

Antiscalant

pH (as supplied): 10.7-11.8 · Specific gravity (@25°C): 1.2-1.3 · Appearance: Clear, amber liquid

Vitec® 3000 is a liquid antiscalant and dispersant designed for reverse osmosis and nanofiltration membrane systems, including those producing drinking water.

DetailsPDF

Vitec® 4000

Antiscalant

Typical Dose Range: 2-5 mg/l · pH (as supplied): 4.5-6.5 · Specific gravity (@25°C): 1.1-1.2

Vitec® 4000 is a liquid antiscalant and dispersant designed for high silica feedwaters. It exhibits excellent performance against a wide range of scales, including silica.

DetailsPDF

Vitec® 5000

Antiscalant

pH (10% solution): 2.0 – 3.0 · Specific Gravity @ 20°C: 1.17 ± 0.05 · Appearance: Light amber liquid

Vitec® 5000 is a liquid antiscalant and dispersant designed to inhibit scale and disperse colloidal particles in membrane separation systems.

DetailsPDF

Vitec® 5100

Antiscalant

pH (2% solution): 5.0-6.5 · Specific gravity (@25°C): 1.05 - 1.15 · Appearance: Clear, amber liquid

Vitec 5100 is a liquid antiscalant and dispersant formulated for preventing scale precipitation in large seawater and municipal reverse osmosis systems.

DetailsPDF

Vitec® 5200

Antiscalant

Typical dosage range: 2 to 5 ppm · pH (2% solution): 5.0 – 6.5 · Specific Gravity @ 20°C: 1.10 ± 0.05

Vitec® 5200 is a liquid antiscalant and dispersant designed for membrane separation systems.

DetailsPDF

Vitec® 7000

Antiscalant

pH (10% solution): 5.0-7.0 · Specific gravity (@ 20°C): 1.15-1.25 · Appearance: Clear, amber liquid

Vitec® 7000 is a multicomponent liquid antiscalant and dispersant designed for challenging brackish water or wastewater applications.

DetailsPDF

Vitec® 8200

Antiscalant

Typical Dosage: 2 to 5 ppm · pH (as supplied): 10.5 – 11.5 · Specific Gravity @ 20°C: 1.15 ± 0.05

Vitec® 8200 is a liquid antiscalant and dispersant formulated with an all-polymer, no-phosphate or phosphonate blend for water treatment.

DetailsPDF

RoQuest-3000

Coagulants & Flocculants

Typical Dose: 0.5-4.0 mg/l. Refer to RoQuest Coagulants Selection Guide and Avista Advisor for specific dosing · pH (1% solution): 4.0-6.0 · Specific Gravity (@25°C): 1.0-1.1

RoQuest-3000 is a liquid multicomponent polymer coagulant designed to enhance filter performance for particle-laden borehole or treated municipal water It is NSF/ANSI 60...

DetailsPDF

RoQuest-4000

Coagulants & Flocculants

pH (1% solution): 2.0-3.0 · Specific gravity (@25°C): 1.3-1.4 · Appearance: Clear, dark brown liquid

RoQuest-4000 is a liquid coagulant blend of organic polymer and ferric sulfate for enhancing multimedia and sand filter performance.

DetailsPDF

RoQuest-5000

Coagulants & Flocculants

Typical dosage: 0.5 to 4 ppm · pH (1% solution): 4.0 – 6.0 · Specific Gravity: 1.05 ± 0.05

RoQuest 3000 is an organic coagulant liquid designed to enhance filter performance by reducing turbidity and color for RO system feedwater.

DetailsPDF

RoQuest-6000

Coagulants & Flocculants

Typical dose: 5-35 mg/l · pH (1% solution): 2.0-3.0 · Specific Gravity (@25°C): 1.40-1.60

RoQuest-6000 is a liquid blend of organic coagulants and ferric sulfate designed for water treatment applications. This product has filter-aid properties.

DetailsPDF

RoQuest-FS

Coagulants & Flocculants

pH (1% solution): 0.4-1.4 · Specific gravity (@ 20°C): 1.5-1.6 · Appearance: Clear brown liquid

RoQuest-FS is a liquid ferric sulfate coagulant designed to enhance filter performance by removing colloids, silt, and organic molecules.

DetailsPDF

RoCide-DB5

Biocides

pH (as supplied): 1.5-5.0 · Specific gravity (@20°C): 1.1-1.2 · Appearance: Clear yellow liquid

RoCide-DB5 is a fast-acting, non-oxidizing biocide with 5% DBNPA solution for shock treatment and RO membrane cleaning. It offers instantaneous antimicrobial activity.

DetailsPDF

RoCide-DB20

Biocides

Dosage: 50-200 mg/l depending on the degree of fouling · pH (as supplied): 2.0-5.0 · Specific gravity (H₂O = 1): 1.2-1.3

RoCide-DB20 is a fast-acting, non-oxidizing liquid biocide based on 20% DBNPA, certified by the EPA for use in reverse osmosis systems.

DetailsPDF

RoClean-L211

Liquid & Powder cleaners

pH (2% solution): 10.5-11.5 · Specific Gravity (@25°C): 1.05-1.20 · Appearance: Clear, colorless to amber liquid

RoClean-L211 is a liquid, low-foaming cleaner designed for reverse osmosis membranes. It is NSF/ANSI Standard 60 certified for offline use in drinking water systems and...

DetailsPDF

RoClean-L403

Liquid & Powder cleaners

pH (2% solution): 2.5-3.5 · Specific Gravity (@25°C): 1.3-1.4 · Concentration: 1% wt/wt for mild fouling, 2% wt/wt for moderate to severe fouling

RoClean L403 is a low pH cleaner designed for reverse osmosis and nanofiltration membranes, formulated with buffers, chelants.

DetailsPDF

Roclean L607

Liquid & Powder cleaners

pH (2% solution): 7.0-8.0 · Specific Gravity (@25°C): 1.1 ± 0.05 · Concentration: 1% wt/wt for mild fouling; 2% wt/wt for moderate to severe fouling

RoClean L607 is a liquid multicomponent cleaner designed for removing organics and colloidal particles from membranes.

DetailsPDF

Roclean L404

Liquid & Powder cleaners

pH (2% solution): 3.5-4.5 · Specific gravity (@25°C): 1.15-1.25 · pH Monitoring: Monitor pH during cleaning. If pH rises, prepare a new batch

Roclean L404 is a water-treatment membrane element to compare by feed type, target water quality, membrane area, and operating pressure.

DetailsPDF

Roclean P111

Liquid & Powder cleaners

pH (2% solution): 10.5-11.5 · Appearance: White powder · Weights: 45 lb, 90 lb, 350 lb (Americas/Asia); 20 kg (EMEA)

RoClean P111 is a multicomponent, high pH buffered powder cleaner for reverse osmosis and nanofiltration membranes.

DetailsPDF

Roclean P303

Liquid & Powder cleaners

pH (2% solution): 2.4-3.8 · Appearance: White powder

RoClean P303 is a powdered, low pH buffered cleaner designed for removing acid-removable foulants like metals and calcium carbonate from RO and NF membranes.

DetailsPDF

Roclean P703

Liquid & Powder cleaners

pH (2% solution): 2.5-3.5 · Appearance: White powder · For 4-inch diameter elements: 10 gpm (2.4 m³/hr) per vessel

RoClean P703 is a low pH buffered cleaner formulated to remove metal foulants from reverse osmosis membranes.

DetailsPDF

RoClean P911

Liquid & Powder cleaners

pH (4.5% solution): 11.5-12.8 · Appearance: White powder · 4-inch Element Diameter: 10 gpm (2.4 m³/hr)

RoClean P911 is a water-treatment membrane element to compare by feed type, target water quality, membrane area, and operating pressure.

DetailsPDF

RoClean L212

Liquid & Powder cleaners

pH (2% solution): 11.7-12.7 · Specific Gravity (@25°C): 1.1-1.2 · 4-inch diameter elements: 10 gpm (2.4 m³/hr)

RoClean L212 Green is a high pH, liquid cleaner designed for removing silt and organic foulants from polyamide membrane elements.

DetailsPDF

RoClean P112

Liquid & Powder cleaners

pH (1% solution): 12.0-12.9 · Cleaning Solution Concentration: 1% wt/wt · pH Monitoring: Monitor pH during cleaning. If pH falls, prepare a new batch

RoClean P112 is a powder cleaner formulated for the safe removal of silica scale, silt, and organic foulants from reverse osmosis membranes.

DetailsPDF

AvistaClean MF 3000

Liquid & Powder cleaners

pH (2% solution): 2.8-3.5 · Appearance: White powder

AvistaClean MF 3000 is a proprietary low pH powder cleaner designed for microfiltration and ultrafiltration membrane systems to remove calcium carbonate and metal...

DetailsPDF

AvistaClean P312

Liquid & Powder cleaners

pH (2% solution): 11.9-12.4 · Appearance: White powder · 4-inch Element Diameter: 10 gpm (2.4 m³/hr) per vessel

AvistaClean P312 is a NSF/ANSI Standard 60 certified off-line cleaner for removing organic and particulate foulants from reverse osmosis membranes.

DetailsPDF

AvistaClean P611 Green

Liquid & Powder cleaners

pH (2% solution): 10.8-11.3 · Appearance: White powder · 4-inch diameter elements: 10 gpm (2.4 m³/hr) per vessel

AvistaClean P611 Green is a multicomponent, high pH buffered cleaner designed for wastewater reuse and landfill leachate systems. This environmentally friendly.

DetailsPDF

Brand Products & Technical Documents

33 product profiles with integrated document access

Each card keeps the curated model introduction and combines the readable datasheet page, OEM PDF, and official source. Product understanding and document access now share one card set.

Antiscalant

13 product profiles

Chemicals
Kurita logo

Product profile

Vitec® 1000

Vitec® 1000 is a liquid antiscalant formulated with 35% polyacrylic acid designed to inhibit scale formation in reverse osmosis feedwaters.

Chemicals
Kurita logo

Product profile

Vitec® 1100

Vitec® 1100 is a liquid antiscalant designed for municipal feedwaters, inhibiting mineral scale including calcium carbonate, metal oxides, and silica.

Chemicals
Kurita logo

Product profile

Vitec® 1200

Vitec® 1200 is a liquid antiscalant for RO/NF membrane systems designed to prevent inorganic fouling, iron, and silica scale.

Chemicals
Kurita logo

Product profile

Vitec® 1400

Vitec 1400 is a liquid antiscalant designed to inhibit inorganic fouling and scale formation in municipal feedwaters, including high hardness ground waters.

Chemicals
Kurita logo

Product profile

Vitec® 1500

Vitec® 1500 is a liquid antiscalant designed to inhibit various scale types and stabilize metal ions in wastewater reclaim and reuse applications.

Chemicals
Kurita logo

Product profile

Vitec® 2000

Vitec® 2000 is a liquid antiscalant and dispersant designed to reduce fouling in RO and NF systems across a wide variety of feedwaters.

Show remaining Antiscalant profiles (7)
Chemicals
Kurita logo

Product profile

Vitec® 3000

Vitec® 3000 is a liquid antiscalant and dispersant designed for reverse osmosis and nanofiltration membrane systems, including those producing drinking water.

Chemicals
Kurita logo

Product profile

Vitec® 4000

Vitec® 4000 is a liquid antiscalant and dispersant designed for high silica feedwaters. It exhibits excellent performance against a wide range of scales, including silica.

Chemicals
Kurita logo

Product profile

Vitec® 5000

Vitec® 5000 is a liquid antiscalant and dispersant designed to inhibit scale and disperse colloidal particles in membrane separation systems.

Chemicals
Kurita logo

Product profile

Vitec® 5100

Vitec 5100 is a liquid antiscalant and dispersant formulated for preventing scale precipitation in large seawater and municipal reverse osmosis systems.

Chemicals
Kurita logo

Product profile

Vitec® 5200

Vitec® 5200 is a liquid antiscalant and dispersant designed for membrane separation systems.

Chemicals
Kurita logo

Product profile

Vitec® 7000

Vitec® 7000 is a multicomponent liquid antiscalant and dispersant designed for challenging brackish water or wastewater applications.

Chemicals
Kurita logo

Product profile

Vitec® 8200

Vitec® 8200 is a liquid antiscalant and dispersant formulated with an all-polymer, no-phosphate or phosphonate blend for water treatment.

Coagulants & Flocculants

5 product profiles

Chemicals
Kurita logo

Product profile

RoQuest-3000

RoQuest-3000 is a liquid multicomponent polymer coagulant designed to enhance filter performance for particle-laden borehole or treated municipal water It is NSF/ANSI 60...

Chemicals
Kurita logo

Product profile

RoQuest-4000

RoQuest-4000 is a liquid coagulant blend of organic polymer and ferric sulfate for enhancing multimedia and sand filter performance.

Chemicals
Kurita logo

Product profile

RoQuest-5000

RoQuest 3000 is an organic coagulant liquid designed to enhance filter performance by reducing turbidity and color for RO system feedwater.

Chemicals
Kurita logo

Product profile

RoQuest-6000

RoQuest-6000 is a liquid blend of organic coagulants and ferric sulfate designed for water treatment applications. This product has filter-aid properties.

Chemicals
Kurita logo

Product profile

RoQuest-FS

RoQuest-FS is a liquid ferric sulfate coagulant designed to enhance filter performance by removing colloids, silt, and organic molecules.

Biocides

2 product profiles

Chemicals
Kurita logo

Product profile

RoCide-DB5

RoCide-DB5 is a fast-acting, non-oxidizing biocide with 5% DBNPA solution for shock treatment and RO membrane cleaning. It offers instantaneous antimicrobial activity.

Chemicals
Kurita logo

Product profile

RoCide-DB20

RoCide-DB20 is a fast-acting, non-oxidizing liquid biocide based on 20% DBNPA, certified by the EPA for use in reverse osmosis systems.

Liquid & Powder cleaners

13 product profiles

Chemicals
Kurita logo

Product profile

RoClean-L211

RoClean-L211 is a liquid, low-foaming cleaner designed for reverse osmosis membranes. It is NSF/ANSI Standard 60 certified for offline use in drinking water systems and...

Chemicals
Kurita logo

Product profile

RoClean-L403

RoClean L403 is a low pH cleaner designed for reverse osmosis and nanofiltration membranes, formulated with buffers, chelants.

Chemicals
Kurita logo

Product profile

Roclean L607

RoClean L607 is a liquid multicomponent cleaner designed for removing organics and colloidal particles from membranes.

Chemicals
Kurita logo

Product profile

Roclean L404

Roclean L404 is a water-treatment membrane element to compare by feed type, target water quality, membrane area, and operating pressure.

Chemicals
Kurita logo

Product profile

Roclean P111

RoClean P111 is a multicomponent, high pH buffered powder cleaner for reverse osmosis and nanofiltration membranes.

Chemicals
Kurita logo

Product profile

Roclean P303

RoClean P303 is a powdered, low pH buffered cleaner designed for removing acid-removable foulants like metals and calcium carbonate from RO and NF membranes.

Show remaining Liquid & Powder cleaners profiles (7)
Chemicals
Kurita logo

Product profile

Roclean P703

RoClean P703 is a low pH buffered cleaner formulated to remove metal foulants from reverse osmosis membranes.

Chemicals
Kurita logo

Product profile

RoClean P911

RoClean P911 is a water-treatment membrane element to compare by feed type, target water quality, membrane area, and operating pressure.

Chemicals
Kurita logo

Product profile

RoClean L212

RoClean L212 Green is a high pH, liquid cleaner designed for removing silt and organic foulants from polyamide membrane elements.

Chemicals
Kurita logo

Product profile

RoClean P112

RoClean P112 is a powder cleaner formulated for the safe removal of silica scale, silt, and organic foulants from reverse osmosis membranes.

Chemicals
Kurita logo

Product profile

AvistaClean MF 3000

AvistaClean MF 3000 is a proprietary low pH powder cleaner designed for microfiltration and ultrafiltration membrane systems to remove calcium carbonate and metal...

Chemicals
Kurita logo

Product profile

AvistaClean P312

AvistaClean P312 is a NSF/ANSI Standard 60 certified off-line cleaner for removing organic and particulate foulants from reverse osmosis membranes.

Chemicals
Kurita logo

Product profile

AvistaClean P611 Green

AvistaClean P611 Green is a multicomponent, high pH buffered cleaner designed for wastewater reuse and landfill leachate systems. This environmentally friendly.

Kurita Chemicals | Models & Datasheets | AquaChain Guide