Mitsubishi Chemical Cleansui Corporation.

What Mitsubishi Chemical Cleansui Corporation. does

Mitsubishi Chemical Cleansui Corporation (三菱ケミカル・クリンスイ株式会社) is a Japanese water-filtration company and wholly-owned subsidiary of Mitsubishi Chemical Corporation, operating from Chuo, Japan with 51–100 employees. It manufactures and sells household water purification systems across four core categories — faucet-mounted (蛇口直結型), pitcher (ポット型), tabletop/built-in (据置/ビルトイン), and shower-head (浄水シャワー) — plus a bottled 'Cleansui Pure Water' line and a refill-tumbler line, all unified by a proprietary polyethylene hollow-fiber membrane (中空糸膜) filtration technology combined with ceramics and activated carbon for multi-stage removal of particulates, bacteria, rust, chlorine, and certified PFOS/PFOA. The company maintains a self-described 'No.1 in Japan' position in household water purification, has demonstrated removal of 15+ contaminant categories on flagship models such as the CSP811, and has begun introducing IoT-enabled models like the MD301i that report usage and filter status to a smartphone app.

The company's commercial model is a hybrid of one-time hardware sales plus three structured recurring-revenue programs: a cartridge subscription delivery service (定期配送) at 2–12 month cadences with a Gold Member tier, a rental program for faucet, pitcher, and shower units with cartridge delivery included, and a Refreshing Faucet replacement service for existing built-in users. Customer-facing pricing spans roughly ¥1,500–¥16,700 per cartridge cycle, with hardware units ranging from about ¥3,326 for basic pitchers to ¥16,020 for premium shower heads, all distributed primarily through the official direct-to-consumer storefront shop.cleansui.com and supported by a LINE official account, customer-review system, and seasonal promotional campaigns. The customer base is exclusively Japanese individual households — no enterprise logos, no case-study customers, and no overseas markets are served, which makes the business a focused, brand-led, parent-subsidiary commerce operation rather than a globally diversified player.

Name

Mitsubishi Chemical Cleansui Corporation.

Legal name

三菱ケミカル・クリンスイ株式会社

Website

https://shop.cleansui.com

Company type

Private

Founded year

1983

Operating status

Operating

Headcount range

51–100 employees

Short description

Mitsubishi Chemical Cleansui Corporation is a Japanese subsidiary of Mitsubishi Chemical that designs and sells household water-purification systems using proprietary hollow-fiber membrane technology, serving Japanese individual consumers through direct-to-consumer e-commerce, cartridge subscriptions, and rentals.

Ownership category

akta.pro rank

Product category

Water Filtration Systems

NAICS

Bottled Water Manufacturing (312112)

akta.pro primary industry

Pitcher & Dispenser Water Filters (CRAJAJAB)

akta.pro secondary industries

Countertop Water Filtration Systems (CRAJAJAC), Under-Sink Water Filtration Systems (CRAJAJAD), Replacement Filter Cartridges & Consumables (CRAJAJAH)

Keywords

• Water filtration systems
• Hollow fiber membranes
• Replacement filter cartridges
• Household water purifiers
• Drinking water treatment

Headquarters

HQ city

Chuo

HQ country

Japan

HQ region

Asia

Markets served

GTM type

B2C

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Operations, Personnel, Technology or R&D, Marketing or Sales

Revenue model

1. Water Purifier Hardware Sales: One-time sales of water purifier units including faucet-mounted, pitcher, built-in, and shower models with associated installation parts.
2. Replacement Cartridge Sales: Recurring sales of replacement filter cartridges with typical 3-month replacement cycles. Includes both one-time purchases and subscription delivery options.
3. Rental Service: Rental model for water purifiers where customers pay rental fees and receive regular cartridge replacements through scheduled delivery.
4. Subscription Delivery Service (定期配送): Automatic cartridge delivery service with fixed 3-month intervals, offering discounts and convenience for cartridge replacement.

Pricing tiers

Go-to-market motion2 records

Distribution channels3 records

Marketing channels5 records

Core offering

Mitsubishi Chemical Cleansui Corporation manufactures and sells household water purification systems built around its proprietary hollow fiber membrane (中空糸膜) technology, offering faucet-mounted, pitcher, tabletop, shower, and built-in units along with replacement cartridges. The company generates recurring revenue through a regular cartridge delivery subscription and through rental programs for water purifiers with scheduled filter replacement.

Product overview

Mitsubishi Chemical Cleansui Corporation offers a comprehensive water purification product portfolio centered on hollow-fiber membrane filtration technology. The main product lines include faucet-mounted water purifiers (CSP, CG, CB, MD/MONO series), pitcher-type purifiers (CP series), tabletop units (SuperSTX), shower heads (SK/SM series), and built-in systems (HUC, HCC, HSC series). Each product category has dedicated replacement cartridges with varying filtration grades (Standard+, High Grade). The company provides complementary services including cartridge subscription delivery, equipment rental programs, and built-in system faucet refresh services. All products feature the company's proprietary polyethylene hollow-fiber membrane technology for removing particles, bacteria, rust, and other impurities from tap water.

Differentiator

Problem solved

Functional benefit

Products and services

• Faucet-mounted Water Purifier (蛇口直結型浄水器) Direct-connect water purifier units that attach to faucet taps for point-of-use purification of tap water, available across multiple series (CSP, CG, CB, MD/MONO) with varying features including LCD displays, water splash control, and smartphone connectivity; intended for Japanese households seeking filtered drinking and cooking water.
• Pitcher-type Water Purifier (ポット型浄水器) Portable pitcher-style water purifiers with built-in cartridge systems, including specialty cartridges for alkaline water, high-speed sterilization, and use-specific water optimized for rice or tea preparation; intended for Japanese households needing portable, no-installation filtration.
• Tabletop Water Purifier (据置型浄水器) Countertop water purifier systems including the SuperSTX series with extended cartridge life of up to 12 months; intended for Japanese households that want higher-capacity filtration without under-sink installation.
• Water Purification Shower Head (浄水シャワーヘッド) Shower heads with built-in water purification that reduce chlorine and impurities during showering for healthier skin and hair, including models SK106W and SM302; intended for Japanese households focused on bath-water quality and skin/hair benefits.
• Built-in Water Purifier (ビルトイン型浄水器) Built-in water purification systems including under-sink and counter-on cartridges in the HUC, HCC, and HSC series for integrated kitchen water filtration; intended for Japanese households with installed kitchen plumbing seeking hidden, integrated filtration.
• Cleansui Pure Water (クリンスイ ピュアウォーター) Bottled purified water product line for consumers seeking ready-to-drink filtered water without owning a purifier unit.
• Cartridge Subscription Delivery Service (カートリッジ定期配送サービス) Regular subscription delivery of replacement cartridges with options for 3-month, 2-month, or 12-month intervals depending on cartridge type, plus a Gold Member loyalty tier with discounts; intended for existing Cleansui purifier owners seeking automated filter replenishment.
• Rental Water Purifier Service (レンタル浄水器サービス) Rental program allowing customers to rent faucet-mounted, pitcher, and shower-type water purifiers with regular cartridge deliveries included in the rental fee; intended for Japanese households that prefer a subscription-based rental model over outright purchase.
• Refreshing Faucet Service (リフレッシュ水栓サービス) Faucet replacement service for existing built-in water purifier users to refresh their kitchen fixtures without replacing the full purifier system.

Quantifiable outcome

• 30% water savings with CSP501 faucet-mounted model
• +2 more outcomes

Segments1 record

Ideal customer profiles1 record

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Scale indicators2 records

Recent moves6 records

Expansion highlights6 records

Broad incumbents

• Pentair: Global water treatment and filtration company with consumer point-of-use products. Comparable on filtration technology and cartridge economics but skewed toward residential whole-house and commercial systems outside Japan.
• Culligan: Global water treatment company with consumer point-of-use filtration and replacement cartridges. Comparable on cartridge-based recurring revenue but predominantly operates in North America and Europe with limited Japan footprint.
• Panasonic: Diversified Japanese home appliance incumbent that sells household water purifiers under its consumer electronics umbrella. Overlaps with Cleansui in built-in and faucet-mounted formats but as one product line within a much broader appliance portfolio.
• TOTO: Japanese sanitary ware and water-related products leader offering water purification units and servers. Comparable as a broader Japanese incumbent in household water quality with adjacent bathroom/kitchen fixtures, but water is one of several major business lines.
• Sharp: Japanese consumer electronics and appliance maker offering household water purifiers alongside a broad home appliance portfolio. Competes in similar product formats but as part of a much wider appliance range.
• 3M (Water Filtration): Global diversified industrial company with a substantial water filtration product line, including consumer pitcher/faucet-mounted units and replacement cartridges. Comparable on cartridge-replacement economics but Japan consumer presence is limited relative to broader industrial filtration.

Direct peers

• Brita (The Clorox Company): Global market leader in pitcher and faucet-mounted water filters, with strong retail presence in Japan. Comparable as the dominant Western consumer water-filter brand competing in the same form factors and replacement-cartridge model.
• Torayvino (Toray Industries): Toray's consumer water purifier brand, also based on hollow fiber membrane technology and a leading Japanese household water filter competitor. Most directly comparable peer given shared Japan market focus, similar membrane tech, and overlapping product formats (faucet-mounted, pitcher, shower).

Regional players

• Coway: South Korea's leading home water purifier and appliance company with a strong subscription/rental model. Highly comparable on subscription cartridge economics but primarily serves the Korean market with limited direct competition in Japan.
• LG Electronics (PuriCare): Korean appliance giant with a home water purifier line (PuriCare) leveraging IoT connectivity. Comparable on smart-filter features but primarily serves Korea and other Asian markets outside Japan.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Mitsubishi Chemical Cleansui Corporation.