What Rainsoft does

RainSoft, founded in 1953 and headquartered under parent company Aquion, Inc., manufactures and distributes residential and commercial water treatment systems, drinking water systems, problem-solving filtration, air purification, and ozone laundry systems. The core technology stack spans ion exchange water conditioning (EC4, EC5, TC, EC4-CAB series), reverse osmosis (Ultrefiner II), carbon block filtration (Hydrefiner II, HYSULEX, Super HYSULEX), ultraviolet disinfection (RCUV), chemical-free oxidation (EC4 OxyTech), and UV/ozone air purification (Airmaster Ultra). Products are backed by 75+ U.S. and international patents, limited lifetime warranties, and third-party certifications including WQA Gold Seal, NSF/ANSI 58 and 372, California Department of Public Health, and ISO 9001 manufacturing. The business is conducted exclusively through an authorized dealer network — locally licensed, bonded, and insured operators (e.g., ENVIROTECH INTERNATIONAL, LLC in Grand Prairie, TX) that deliver free in-home water testing, professional installation, annual maintenance, and repair services. Revenue is generated through quote-based hardware sales of systems and consumables (filters, UV lamps, salt) and recurring professional services, with no public pricing disclosure. The primary customer base is residential homeowners, augmented by commercial deployments in hotels, hospitals, and factories, and notable hospitality accounts including Hilton and Marriott for CleanStart ozone laundry systems. Equipment is sold in over 20 countries, supported by RainSoft Remind IoT/app monitoring on the EC5 platform for iOS and Android.

Name

Rainsoft

Legal name

ENVIROTECH INTERNATIONAL, LLC

Website

https://rainsoftofgrandprairie.com

Company type

Private

Founded year

1953

Operating status

Operating

Headcount range

11–50 employees

Short description

RainSoft, founded in 1953 and owned by Aquion, Inc., manufactures residential and commercial water treatment, air purification, and laundry systems sold exclusively through an authorized dealer network across more than 20 countries.

Ownership category

akta.pro rank

Product category

Water Treatment Equipment

NAICS

Automatic Environmental Control Manufacturing for Residential, Commercial, and Appliance Use (334512), Industrial and Commercial Fan and Blower and Air Purification Equipment Manufacturing (333413), Plumbing and Heating Equipment and Supplies (Hydronics) Merchant Wholesalers (423720)

SIC

Water Supply (4941), Wholesale-Hardware & Plumbing & Heating Equipment & Supplies (5070), Air-Cond & Warm Air Heatg Equip & Comm & Indl Refrig Equip (3585)

akta.pro primary industry

Water Softener, Filtration & Treatment System Installation (HSAOAAAH)

akta.pro secondary industries

Under-Sink Water Filtration Systems (CRAJAJAD), Water & Home System Care (Water Softeners, Septic Treatments, Drain/Openers, Appliance Cleaners) (CRADAKAK), Monitoring & Control (Dosing Systems, Remote Monitoring, Sensors) (BPABAJAK)

Keywords

• Water treatment systems
• Water softening equipment
• Drinking water filtration
• Air purification systems
• Laundry ozone systems

Headquarters

HQ city

Grand Prairie

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2C

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Water Treatment Systems Sales: Sale of water conditioning systems, water softeners, drinking water systems, and whole-house filtration systems. Products include EC4, EC5, EC4-CAB, TC Series, Ultrefiner II, and Hydrefiner II systems sold through authorized dealers.
2. Air Purification Systems: Sale and installation of Airmaster Ultra air purification systems that treat entire homes through HVAC ductwork integration.
3. Professional Services: Dealers provide installation, annual maintenance, repair services, and water testing performed by factory-trained technicians and licensed contractors.
4. Replacement Filters and Parts: Ongoing revenue from replacement filters, cartridges, UV lamps, ozone lamps, and other consumable parts for installed systems.
5. CleanStart Laundry Systems: Sale of CleanStart ozone-based laundry systems for residential use, utilizing technology originally developed for commercial laundry operations.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels7 records

Core offering

RainSoft designs, manufactures, and sells residential and commercial water treatment systems (water conditioners, water softeners, reverse osmosis drinking water systems, carbon block filters, ultraviolet disinfection units, and problem-solving filters for iron, manganese, and sulfur), air purification systems, and ozone laundry systems. All products are sold exclusively through an authorized dealer network that delivers free in-home water testing, professional installation, annual maintenance, and repair services to homeowners and small businesses. The company is privately held by Aquion, Inc., founded in 1953, and assembles its products in an ISO 9001-certified Midwest facility.

Product overview

RainSoft offers a comprehensive portfolio of water treatment and air purification products for residential and commercial applications. The core product line includes water conditioning/softening systems (EC5, EC4 Series, EC4-CAB, TC Series) that use ion exchange resin technology for whole-house water softening, complemented by drinking water systems (Ultrefiner II with reverse osmosis, Hydrefiner II with carbon block filtration) for point-of-use purified water. Problem-solving filtration products address specific contaminants including the Whole-House Carbon Filtration System, Semi-Automatic Carbon Filtration, EC4 OxyTech for iron/manganese/sulfur, and RCUV Ultraviolet Disinfection for microbiological threats. Air treatment is handled by the Airmaster Ultra UV/ozone system, while the CleanStart Laundry System uses ozone technology for chemical-free washing. All products are manufactured in the USA, backed by limited lifetime warranties, and sold through authorized dealers.

Differentiator

Problem solved

Functional benefit

Brands

• RainSoft Remind®: Wireless app monitoring system for EC5 water conditioning systems, available for iOS and Android, allowing users to monitor their system remotely and receive alerts for salt levels and service requirements.
• Airmaster Ultra
• CleanStart®
• Ultrefiner II
• Hydrefiner II
• EC4 Series
• EC5 Series
• EC4 OxyTech™
• TC Series
• HYSULEX™
• Super HYSULEX™
• RCUV™

Products and services

• EC5 Water Conditioning System Whole-house computer-controlled water conditioning system with wireless app monitoring (iOS/Android), six-line LCD, real-time notifications, and DC power supply for energy efficiency, aimed at homeowners seeking premium smart water softening.
• EC4 Series Water Conditioners Premium whole-house water conditioners with microprocessor-based smart features, self-cleaning control valve, and limited lifetime warranty covering treatment tank, valve, and electrical parts.
• EC4-CAB Water Conditioning System EC4-based water conditioner with immediate condition response, power outage recovery, alarm tones for low salt/no salt/service, two-line LCD, and optional carbon bed for polishing and clarifying water.
• TC Series Water Conditioning Systems Whole-house electronic-timer water conditioners with self-cleaning control valve, high flow rates, 75-inch-per-pound drive motor, 24-volt electrical system, fail-safe brine valve, and battery back-up.
• Ultrefiner II Reverse Osmosis Drinking Water System Multi-stage under-sink reverse osmosis drinking water purifier with carbon block pre-filter, reverse osmosis membrane cartridge, and carbon block post-filter, producing ingredient-quality water with limited lifetime warranty.
• Hydrefiner II Drinking Water System Compact under-sink carbon block drinking water filtration system with multi-stage filtration including carbon block prefilter and 5-micron particulate filter, providing up to 830 gallons of filtered water per cartridge.
• Whole-House Carbon Filtration System Whole-house activated carbon filtration system with tank-within-a-tank construction, downflow configuration, and HYSULEX or Super HYSULEX silver-impregnated carbon media to reduce aesthetic chlorine and organic contaminants.
• EC4 OxyTech Oxidation System Fully automatic chemical-free whole-house oxidation system that reduces iron, manganese, and hydrogen sulfide via a compressed aeration chamber and multimedia filter bed paired with EC4 control technology.
• RCUV Ultraviolet Water Disinfection System Whole-house UV disinfection unit installed on the main water line, using a UV lamp inside a quartz sleeve within a stainless steel chamber to kill bacteria and inactivate viruses without chemicals, with lamp-change alarms.
• Airmaster Ultra Whole-House Air Purification System Whole-house HVAC-ducted air purification system combining ultraviolet light and ozone technologies with adjustable ozone output to reduce airborne contaminants, bacteria, molds, and household odors while drawing only 47 watts.
• CleanStart Laundry System Residential ozone-based laundry system that injects ozone into cold water to clean laundry without hot water or detergent, compatible with all washing machine types, using less electricity than a 40-watt bulb, with limited lifetime warranty.

Quantifiable outcome

• Produces up to 830 gallons of filtered water before cartridge replacement (Hydrefiner II)
• +3 more outcomes

Named customers6 records

Segments3 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature9 records

Partnerships

Two partnerships are on record, tiered core.

• ENVIROTECH INTERNATIONAL, LLCcoreChannel Partner/ Reseller/ DistributorENVIROTECH INTERNATIONAL is an authorized RainSoft Dealer based in Grand Prairie, TX with over 50 years of combined experience in the water treatment industry. They are fully licensed, bonded and insured. They offer RainSoft water treatment systems, air purification systems, reverse osmosis systems, replacement filters, annual maintenance, professional water testing, installation, and service. Work is completed by factory-trained service technicians and installations are performed by licensed contractors.
• Aquion, Inc.coreOthersAquion, Inc. is the parent company of RainSoft. RainSoft collects personal information and operates dealer networks on behalf of Aquion, Inc. as stated in the privacy policy.

Scale indicators6 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Culligan: Culligan is the most direct competitor to RainSoft, operating a similar authorized-dealer network selling water softeners, drinking water filtration, and reverse osmosis systems to residential and commercial customers across North America. Comparable business model: hardware (equipment sales) plus ongoing service contracts and consumables.
• Pelican Water Systems: Pelican sells residential and commercial water softeners, whole-house filtration, reverse osmosis, and UV systems, with both direct-to-consumer and dealer channels. Comparable product mix and customer base to RainSoft, with a more DTC-leaning motion.
• Kinetico: Kinetico manufactures non-electric, dual-tank water softening and filtration systems and distributes them through an authorized dealer network. Closely comparable to RainSoft on product technology (ion exchange/filtration), dealer-distribution model, and target customer (residential homeowners with hard-water and quality issues).
• EcoWater Systems: EcoWater Systems (a Whirlpool/Marley legacy brand) sells residential water softeners, drinking water systems, and filtration products through an authorized-dealer channel — directly parallel to RainSoft's distribution, product mix, and warranty-based go-to-market.
• WaterBoss: WaterBoss brands compact residential water softeners and iron filters sold through plumbing wholesalers, big-box retail, and dealer channels. Closely comparable on residential softening and small-footprint filtration versus RainSoft's EC4/TC product lines.
• Aquasana: Aquasana (now a Quell Company brand) markets whole-house filtration, drinking water (reverse osmosis and Claryum), and shower filters primarily via direct-to-consumer channels rather than dealers. Comparable products and target customer, contrasting go-to-market model vs. RainSoft's dealer network.
• Hague Quality Water of Maryville: Hague is a family-owned water treatment manufacturer that sells water softeners, reverse osmosis, and filtration through authorized independent dealers like RainSoft. Direct overlap on whole-house conditioning, drinking water systems, and dealer-led install/service.

Broad incumbents

• Pentair: Pentair is a broad water treatment and flow-control incumbent that hosts RainSoft's privacy notice and supplies filtration/softening products at scale. Operates across residential, commercial, and industrial water treatment, with overlapping products (filters, RO, softeners) but a much larger portfolio and direct-to-consumer sub-brands.
• Whirlpool Water Filtration: Whirlpool sells under-sink and refrigerator water filters (EveryDrop, Whirlpool-branded) at retail and online at scale. Same point-of-use drinking water category as RainSoft's Ultrefiner II/Hydrefiner II, but distributed through mass retail rather than dealers.
• PR Water (Procter & Gamble PUR): PUR is a leading consumer faucet-mount and under-sink filtration brand from Helen of Troy (formerly P&G), competing with RainSoft at the entry-level drinking water filtration tier via mass retail and DTC — a broader incumbent shaping consumer price expectations in the category.

Market position

Strengths5 records

Weaknesses4 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/RainSoft.HQ

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 Rainsoft