JWI Filter Press - New Equipment and Parts

Evoqua is the OEM for JWI, USFilter, Perrin, Siemens and other brands of filter presses. For 40 years Evoqua has provided new equipment, spare parts and replacement parts and best-in-class service for these dewatering brands.

 J-Press filter press by JWI

Evoqua's J-Press® filter presses by JWI®, an Evoqua brand, have been the industry leader in dewatering for over 40 years. In any process that requires a separation between liquid and solid suspension, Evoqua has been setting the standard.

Already an Evoqua customer? Get information on your dewatering equipment, based on your serial number, on our new, secured ToolDOX® platform! O&M manuals, exploded-view drawings with live parts lookup, parts & service RFQ built-in!

From conventional industrial waste sludge to high solids mineral processing applications, we have equipment to meet your dewatering needs. Additionally, Evoqua can engineer a turnkey dewatering system, as well as customize cost-effective preventive maintenance and support programs for your specific equipment, application, and environment.


You have come to the right place for spare parts for JWI filter presses, replacement parts for JWI, Siemens, USFilter, Passavant, Perrin, IPM and other brands of filter presses, and parts for dryers including the JWI brand J-Mate® Dryer.


We also carry an extensive selection of filter press cloths and filter press plates of all sizes for most applications. We have filter press plates for mining applications as well as for other markets and applications. We also carry filter press cloths to meet your exact application.


Whether you need a new J-Press overhead filter press or a J-Press sidebar filter press or an MC Press for mining we have original eqipment as well as replacement parts for these filter presses and more. Evoqua is the Original JWI filter press manufacturer.


We even carry filter press accessories like cloth washers, drip tray, air blow, air hammers, spatulas and much more.


Evoqua supplies a number of different types of equipment in the Surface Finishing industry, from dryers and filter presses to anodes and resin systems. Check out what equipment we have available for the surface finishing industry!

Read our two surface finishing-related blog posts:

Sometimes You Just Need A Really Big Dryer

Secret Weapon Lowers Costs In Metal Finishing

Check out our two newest videos!

We have been in the mining business for over 40 years. Watch us build an enormous MC Press® filter press in 2 minutes! Spoiler alert: we supply the mining industry with way more than just filter presses - check out our mining site here.


Evoqua customers, new and existing - find all your information on our free and convenient ToolDOX® Portal!

See what other brands we sell and service.

New Blog Post: World Travel - A Lost Flashlight And The Voice Of Experience


 Building Monster Filter Presses, and Other brands we sell and service



What's the difference between a Gasketed filter press and a Non-Gasketed filter press?

Understanding the differences between these two types of filter presses is essential. Your dewatering process may require one type or the other, and this short video helps you have that conversation with your engineers, facility managers or Evoqua sales reps.

We build by hand in the USA.

Evoqua's roots lie in over 40 years of providing solutions for all dewatering applications. These brands have contributed to the legacy of Evoqua and they are an essential part of our heritage. We are the Original Equipment Manufacturer (OEM) for these trusted filter press brands:

​JWI®   ​USFilter® Siemens 

CPC ​Edwards & Jones Envirex®
​IPM ​Passavant® ​Perrin

Applications for filter presses range from industrial waste sludge, lime softening residuals, high solids mineral processing, to high-tech circuit washing and more. Whatever your dewatering needs Evoqua has the necessary equipment. We even carry mobile and portable filter presses. Our filter presses are designed to be fully automatic, running lights-out, with automatic plate shifters and clother washers, or manually with manned plate shifters.

In addition to the equipment itself, Evoqua can customize a cost-effective preventative maintenance program for your application. Like a traditional health checkup, a customized maintenance program will extend the life of your equipment and save you significant replacement costs.

This range of products for which we are either the OEM or that we service are part of a rich history of JWI and its acquisitions that make our dewatering portolio the best in the industry. Read about our other brands here.

Evoqua's filter presses are involved in processes such as industrial waste streams, sludge dewatering, food and beverage processes, concrete gray water reclamation, stone cutting and many others.