FSI Multi-Bag Filter Housing Units - Stocking In 304 or 316 SST

Big Flow, Large Volume, No Problem!

Filter Sciences strives to meet the needs of all of our clients and that means engineering large multi-bag filter housing units to accommodate large volumes and flow rates. In fact, our standard stainless steel multi-bag filtration units can handle flow rates of up to 2,400 GPM. And, if that isn’t enough, contact us with your needs, and we can custom engineer a solution to meet your specific needs. These filter bag housing units can be used with various filter media and are safe for use with a variety of chemicals and products flowing through it. The stainless steel components are corrosion resistant and make the filter units easy to clean — at carbon steel prices! 


Quality design & construction features inside and out

  • No Backwash
  • Flexible Media
  • Ergonomic Design
  • Positive Sealing
  • Superior Lid Closing System
  • Differential Gauge Ports
  • Over-the-Top Design
  • Drain Port

The Filter Science Difference

At Filter Sciences, we focus on one thing: engineering and manufacturing high-quality stainless steel bag filter housing units. This allows us to focus on the details and create custom units to meet our clients’ unique needs. We stock a complete line of multi-bag housing units and can ship the next business day. If your application requires multiple filtration housing units or a specific design, our engineers will work with you and discuss your options. Our bag filter housing units offer extended service life and a large return on investment. Make your investment today so that you don’t have to worry about tomorrow!

Tile 1


In our Foundry, eliminating downtime is critical. These bag filters have improved the cleanliness of our cooling towers, heat exchangers and closed loops exponentially. We no longer schedule regular cleanings.


I really like the ability to change the level of filtration by just changing a bag, and of course, we can’t afford any fluid losses to backwashing. These stainless bag filters fit our requirements to the



Multi- Bag Filter Housing Unit Features and Benefits

Tile 2

If your filtration application needs include higher volumes and flow rates but prefer less frequent media bag changes, a multi-bag filter housing system may be the best option for you. Multi-bag filter housings offer fast turnaround times and reduce downtime during bag media filter changes. Compression bag clamps guarantee a positive seal and offer zero discharge — no process fluids are lost. These features also prevent bypassing and leakage.

Our ergonomic design makes operation, repairs, and cleaning of the multi-bag filtration housing system quick and easy. Stainless steel prevents corrosion and is easy to sanitize. Over-the-top design and spring lids make cleaning and changing filter bags easier. Side drain ports allow for chaining multiple units together, to run in parallel, or alternate for a continuous source of the filtered fluid. Because you can simply replace the filter media, our bag housing units offer huge savings over cartridge filters.


Multi-Bag Filter Housing Unit Sizes and Functions

At Filter Sciences, we offer a wide variety of multi-bag filtration housing systems that range from 1 to 12 cells. Each of the cells is capable of up to 200 GPM flow.  If 12 cells are not enough for your application needs, all of our units can easily be flanged together, run in parallel, or chained to alternate for continuous filtration. Piping multi-bag units together permit disabling one to service it while flow continues through the other to offer continuous use and no downtime.  

Because our filter housing units are capable of using any of hundreds of bag filter media options, including multi-basket strainers, they can be used in nearly any application you need. Made of stainless steel, our multi-bag filter housing units are corrosion-resistant and able to be used in many applications. Common applications of our units include metalworking, pharmaceuticals, hydraulic fracturing, food and beverage, paint and lacquer, chemical processing, and the automotive industry. Discover all of the uses on our application page. 

Tile 3

Twin or Multiple Bag Filter Housing System

Tile 4

Whether you need more than 12 bag filtration cells in your housing unit or your application requires more frequent filter media changes or strainer cleaners, using modified bag housing units or flanging several together may be the better option for you. At Filter Sciences, we offer twin and dual bag filter housing units in both the single and multi-bag options. Additionally, all of our bag filtration housing systems feature side valves to allow the units to be flanged together. Creating a multiplex filter housing system allows for cleaning, servicing, and bag changes without disrupting flow and permitting continuous operation. Contact our engineers to discuss your specific filtration needs, and let us customize a bag filtration system that works for you.

Increase capacity and decrease downtime when you work with Filter Sciences for your multi-bag filtration housing needs.

Contact FSI Today!

Why Use a Bag Filter in Your Industrial Setting?

Filtration is incredibly important to remove debris and other impurities from fluids that you need to use in an industrial setting. Filters like those produced by Filter Sciences are used in oil and gas, metalworking, pharmaceutical, food and beverage, and many more industries. Filter Sciences’ industrial bag filter housing units are designed to provide reliable…

Read More

Convenient Features of Filter Bag Housings

Filter bag housings are a convenient and efficient way to filter various liquids, including water, in industrial and commercial settings. The most common type of filter bag housing is the stainless steel filter housing, which is extremely durable and corrosion-resistant, making it ideal for a wide variety of applications. At Filter Sciences, we engineer both…

Read More

Qualities that Make Stainless Steel Superior

Stainless steel is one of the most popular materials used in a variety of applications ranging from food preparation to construction. Its superior qualities make it an ideal choice for a variety of uses, including stainless steel bag filter housings. At Filter Sciences, we only sell stainless bag steel housings, due to a plethora of…

Read More

What Does a Bag Filter Housing Protect Against?

When it comes to gas and oil processing facilities, water treatment plants, and chemical processing plants, one of the most important components is a bag filter housing. A bag filter housing provides protection from waterborne particles, rust and corrosion, water-polluting compounds, and other hazardous materials. At Filter Sciences, we manufacture and supply water filter housings…

Read More

How Bag Filter Housings Work

As a commercial business owner, you understand the importance of water filtration. Whether you’re filtering water for a large factory, an oil and gas company, or anything in between, you need a reliable way to remove particulates from the water. That’s where stainless steel bag filter housings come in. Bag filter housings are a type…

Read More

Industries That Could Use Stainless Steel Filter Housings

Stainless steel filter housings are becoming more popular in a variety of industries due to their many benefits. Filter housings are enclosures that house filter elements. They come in a variety of materials, but our stainless steel filter housings are resistant to rust, extreme temperature conditions, and more! Here are a few industries that could…

Read More

How Filter Bag Housings Affect the Quality of Farm to Table Foods

A filter bag housing can improve your filter function exponentially. Whether you are using a regular bag filtration housing or a multi-bag filter housing, you will experience increased benefits for your overall filtration needs. Filter Sciences makes all the products that you need for proper filter function in your business. Keep Food Safe and Secure…

Read More

The Role of Bag Filtration Housing in the Metalworking Industry

Filter bag housings can be a significant improvement for your metalworking processes in your business. These bag filtration housing products pretend contaminants from getting into the air, and they can also be used to remove contaminants from your processing steps. Filter Sciences products can make every aspect of your metalworking business more efficient. Product Quality…

Read More

Carbon Steel Vs. Stainless Steel: A Side-By-Side Comparison

Here at Filter Sciences, we boast the fact that we proudly use only the best stainless steel in the production of our bag filter housing units. If you have visited us online or delighted in the use of our filter bag housing systems, you have undoubtedly discovered the stainless steel difference. However, there are those…

Read More

Beer Filtration in the Brewing Industry

Filtration is key to improving the quality and taste of beer in any setting. Whether individuals are making homebrew, pub breweries are making stock quantities, or large-scale beverage distributors are mass producing a line of beer products, the filtration is very similar. In today’s post, we are going to review some of the steps of…

Read More