Western Industrial has supplied Replacement Parts for Multinational Commercial Water Purification Systems for 30 years

Western Industrial Inc BBB Business Review

UV Lamps

We carry arc tubes, UV lamps, quartz sleeves and parts for Aquionics, Hanovia and Berson UV-techneik systems.


We carry Dow/Filmtec, Hydranautics, Osmonics, Desal, Koch, Toray and TriSep replacement RO membranes.


We carry filters for microfiltration, ultrafiltration and nanofiltration specifications from several suppliers.

Need Help?

In-stock items usually ship the same day. If we don't have some obscure part in stock, we'll try to track one down for you.

Valves / Pumps / Motors

Whether you need valves, pumps, motors, gauges or any manner of replacement parts, you want us to be your first call.

Woman-Owned Small Business

Wendy Quinn started her water filtration parts business in 1986 with an initial focus on the semiconductor industry.

Dow Water Solutions

We offer the complete line of Dow FILMTEC™ brackish water ROFILMTEC semiconductor grade reverse osmosis elements as well as their DOWEX™ MONOSPHERE™ ultrapure water grade ion exchange resins which meet the most stringent water purity standards required to produce ultrapure water for micro-electronic plants and semiconductor fabrication.

Dow’s Water Solutions microelectronics business benefits the printed circuit board and biotech industries because they design and manufacture a comprehensive range of specialty reverse osmosis membrane elements and ion exchange resins.

Aquafine UV

Part of the Trojan Technologies Group of Companies, Aquafine specializes in bringing water treatment technology to the industrial marketplace, such as food/beverage and microelectonics.

Gary Vander Laan of Aquafine, a business unit of Trojan Technologies, provides an overview of the company's UV disinfection offerings for the industrial market, particularly the beverage market which faces strict government safety regulations.

Wedeco - Xylem

LinkWEDECO UV systems are for the disinfection of pressurized wastewater, surface water, process water, and other low UV transmittance liquids. They meet the U.S. Environmental Protection Agency's UV Disinfection Guidance Manual and the UV guidelines from the National Water Research Institute (NWRI) which apply to the disinfection of drinking-water supply sources, as well as the most stringent California Title-22 Water Reuse standards.

As a leading provider of water technology and treatment equipment, Xylem is committed to building a tomorrow where everybody has access to clean, safe water.

Trojan Technologies

Trojan Technologies is a group of businesses made up of: Aquafine UV, Salsnes Filter, Trojan Marinex, Trojan UV, USP Technologies and VIQUA. The products and services provided by these businesses play vital roles in making various stages of the water treatment process more effective, efficient and sustainable.

Trojan Technologies makes water treatment more effective, efficient and sustainable while ensuring greater water confidence and environmental stewardship for people, industries and municipalities around the world.

Trisep RO Membranes

TriSep is a global supplier of a wide variety of specialty membranes including the iSep™ (Integrated SpiraSep™ membrane modules) which can be custom designed for reverse osmosis, nanofiltration, ultrafiltration to microfiltration, as well as membrane cleaners and scale inhibitors.

TriSep offers a diverse line of specialty proprietary membrane and element chemistries and technologies that focus on markets and liquid filtration applications that require its unique customization capabilities.

TriSep custom membranes

GE Power and Water Tech

Industries involved in chemical processing, facilities management, food and beverage, mining, microelectronics, pharmaceuticals, municipal, primary metals, refining and unconventional fuels are implementing water reuse technologies from GE.

GE Technology can substantially reduce wastewater through the reuse of process water, reducing the stress on the Earth's freshwater sources.

Koch Membrane Systems

KMS provides a variety of cost-effective solutions to purify incoming water and outgoing wastewater streams in commercial facilities that can be customized to meet specialized water treatment and wastewater discharge compliance requirements across many industries.

KMS has introduced a variety of membrane solutions into large-scale municipal applications, most notably for the treatment of surface, brackish, or seawater water for production of drinking water.

Some of our water filtration parts suppliers

Get in touch with Western Industrial Inc

Your commercial water system parts supplier

Please contact us whenever you need spare replacement parts for any type of water purification system. We ship worldwide with the exception of high fraud risk countries. Our California office is open Monday through Friday from 8:00am to 5:00pm Pacific Standard Time but you can write to us anytime and we'll get back to you as soon as possible, often after-hours, because emergencies happen.

One of our goals is to continue to offer our customers the most up-to-date water treatment equipment and technology. So, if you are a water treatment component manufacturer looking for an established parts and consumables distributor for your product line, give us a call. We'd love to hear from you.

  • PO Box 1958, 7395 Starr Road, Windsor, CA 95492
  • (707) 838-8078
  • Toll free: (800) 348-4222