Brother Filtration provides you with pre-sale and after-sale services, which make it carefree for your purchasing. From production to package, Brother Filtration cares about every details to offer you the best quality products. Our passionate staffs and professional R&D teams all dedicate to give our clients perfect purchasing experience, try our best to solve all problems. We insist on the principle of high quality and perfection, always help to improve the efficiency and productivity for our clients. Whenever you have a problem, feel free to come to us, and we will solve it as fast as we can.


1. Q: Could we become Brother Filtration exclusive brand agent in our country?

We are very interested in cooperating with our valuable clients to develop a local market and build a win-win business. For more details, welcome to send your requirements to our [email protected]

2: Q: Do you accept OEM/ODM for filtration products?

Yes, OEM/ODM is available. Send your detailed requirements to us, we are here to offer professional proposals for your choice and help design appropriate filters.

3: Q: What is the relationship between Keya Water and Brother Filtration?

Keya Water is a one-stop supplier and a sister company of Brother Filtration, which has served the water treatment market for more than 6 years and exports goods to more than 68 countries.


1. Q: What’s the service life of the filter cartridge?

The service time of the cartridge filter depends on the water quality, suitable filter material selection will be provided accord to the water quality.

2: Q: How about the guarantee time of filter housing?

Warranty period: one year, compared with similar products, our filter housings’ stability is the highest. Also, contact us at [email protected], our professional engineer team will supply you with the best support.

3: Q: Could you give us lowest price for filters?

Brother Filtration offers higher quality filtration products at a reasonable price! No low-quality filters at very low prices are allowed. You can check our samples first, appropriateness is the most important.

4: Q: How do we get best shipment scheme of filtration product?

After we get the goods list, total volume and compared freight will be calculated with the different forward companies for the best scheme. For more details, welcome to send your requirements to our [email protected].

5: Q: How do we get your filter catalog and price list?

Our professional engineer team is ready to help you solve the problem once they received the message, and they would reply within 24 hours.

6: Q: What terms of payment is available for you?

Clients from Brother Filtration mostly paid via T/T, if you share good credit, Paypal, L/C, DP, etc. also acceptable.

7: Q: How long is the shipment time?

Our delivery time is usually 10 working days. The time required for shipping varies due to regional differences. For example, it takes 10-15 working days in Southeast Asia and 20-25 working days in the Middle East.

8: Q: What can Brother Filtration offer before-sale?

We will help you find the best filtration products for your project. You can contact our staff via email or online, we will formulate a perfect filtration for you based on your real needs.

9: Q: What’s the after-sale service?

When you receive the product, we will provide a video guide to help you install it. We can perform a lab examination of the product after you use it in order to produce a more effective and targeted product. In addition to this, we offer a guarantee if the product is not damaged by any external forces.

10: Q: Will my goods be damaged during the shipping process?

Before shipment, we will double-check everything. We will try our best to keep the products in perfect conditions.


1. Q: How long is the production time?

Our company has a total of 4000 square meters of filter element production workshop, and we can produce more than 100,000 pcs high flow filter elements per year; some products we have in storage. It mainly depends on the product type and the quantity you prefer.

2: Q: How can Brother Filtration ensure the quality of products?

Brother Filtration has sent our products to authoritative organizations to do tests, and you can check all the certificates on our product quality page.

3: Q: What if I can't find the right product in need size?

Brother Filtration can provide you with customization service for some products. If you have any problem about sizes of product, you can contact us [email protected].

4: Q: Is one-stop shopping in Brother Filtration possible?

Brother Filtration dedicates to provide one-stop shopping experience, to simplify customers’ purchasing process. We have a wide variety of products covering a wide range of fields, so we believe you can find what you need.

Technical Support

1. Q: How do we get the suitable filtration scheme?

For an accurate offer, some details need to be confirmed: 1. Industry;  2. material;  3. micron rating. Then we can give you a professional filtration proposal.

2: Q: What Brother Filtration has done to improve our R&D technology?

We have cooperated with University of Zhejiang Technology to do R&D for filtration. That’s why our products are so competitive.

3: Q: Can we get in touch with technicians directly?

Yes, of course. Brother Filtration is willing to help our customers solve specific technical problems. To improve the communication efficiency, we would let our technicians answer the questions directly.

Industrial Water Treatment

1. Q: What is water purification?

Water purification refers to the removal of impurities contained in water, including different types of impurities such as pollutants, bacteria, or microorganisms.

Water purification is not a single-sided process, and its purification process consists of multiple steps. Choose different purification steps to remove according to the type of impurities in the water. Different types of water, treatment will vary greatly.

2: Q: What is aerobic water treatment?

There are two types of transfer when bacteria are used to purify water, and aerobic transfer is one of them. Aerobic transfer is the conversion of pollutants in water by oxygen-dependent bacteria. Aerobic bacteria require oxygen for different types of chemical transformations. Aerobic bacteria convert the compounds when there is enough oxygen. In general, aerobic bacteria convert pollutants into carbon dioxide and water.

3: Q: What is anaerobic water treatment?

There are two types of transfer when bacteria are used to purify water, and anaerobic transfer is one of them. The anaerobic transfer is the conversion of pollutants in water by oxygen-independent bacteria.

Anaerobic bacteria use other types of substances to carry out chemical transformations. Anaerobic bacteria perform the transformation when the water is low in oxygen. During its conversion, not only carbon dioxide and water are produced, but also methane gas.

4: Q: What is a UV system?

The ultraviolet water filter is a compact, precise, energy-saving, and environmentally friendly disinfection system, which is an effective and safe way to eliminate harmful bacteria in water. In the ultraviolet water disinfection technology, ultraviolet light with a wavelength of 253.7 nanometers is used to disinfect bacteria, viruses, molds, algae, and other microorganisms that multiply and grow in large numbers. UV disinfection technology destroys the DNA of microorganisms, rendering them dead and unable to grow further.

5: Q: What is activated carbon?

Activated carbon after processing has pores with small shapes and small areas, which increases its surface area in use. Activated carbon filters can adsorb and filter chemicals very well, and effectively remove chlorine, sediment and other particles, volatile organic compounds and odors in the water.

6: Q: How can bacteria be removed from water?

Bacteria and microorganisms in water can also be removed by disinfection. It can be done by adding certain substances such as fungicides to remove bacteria. UV light is a more environmentally friendly way of disinfecting.

7: Q: How are fertilizers removed from water?

Fertilizers such as phosphates in water are chemically reacted by adding another substance (iron), which turns into solid precipitates, which are then removed by filtration.

8: Q: How is contaminated water treated?


Some pollutants, such as oil, can be settled in a settling tank prior to the start of the purifying process. Once they have descended to the tank’s bottom, they are very simple to remove.


Removal of dangerous microorganisms

It is frequently necessary to remove microbes from polluted water. After that, the water is typically chlorinated to sterilize it.


Removal of dissolved solids

Microorganisms can be beneficial for the methods used to purify water in addition to being a hazard to it. They have the capacity to transform harmful pollutants into harmless substances.


Physical/ chemical techniques

When microbial treatment is not available, we usually use different physical or chemical treatment technologies for water treatment. Chemical treatment involves the addition of chemicals that change the material structure of pollutants for better removal. Physical treatment is directly related to the purification process, and filtration is one of the most common methods.

9: Q: What is the difference between industrial water treatment and industrial wastewater treatment?

Industrial water treatment is the method, technique, or mechanism utilized to prepare water (incoming feed water) for initial usage before it is employed in manufacturing or commercial operations.

Industrial wastewater treatment refers to the procedures, gear, or methods used to clean up water that has been tainted by industrial or commercial operations before it is returned to the environment or put to use again.

Industrial businesses and manufacturing facilities frequently need to treat spent water or wastewater before discharging it in order to stay in compliance with discharge regimes that protect the environment.

Industrial wastewater treatment and industrial water treatment technologies can use chemical treatment in addition to multi-stage water filtration systems.

10: Q: What is the recommended water treatment method for boiled feed water?

Generally speaking, the two ways are chemical water treatment and physical industrial water treatment equipment. Chemical treatment is generally used before physical equipment water treatment. The choice of boiler feed water treatment method largely depends on the water quality type of raw water and the industrial pressure of the boiler itself.

Calcium carbonate scaling is relatively common in low-pressure boilers. Demineralized water (with the highest purity) should only be used in high-pressure boilers, as water of lower purity can lead to deposits or corrosion in the boiler equipment. The water quality of boiler feed water can be produced and treated by filtration, softening, reverse osmosis process, and other treatment methods, especially reverse osmosis and softener can also reduce the chemicals needed to treat boiler feed water.

11: Q: Is water softening alone sufficient for treating boiler feed water?

Soften water can only meet the needs of some low-pressure boilers, but for most boiler-feed water treatment, soften water treatment alone is far from enough. The softener can only remove the calcium and magnesium minerals deposited by the scale, but cannot remove other sediments and minerals. A reverse osmosis filtration system solves this very well, filtering out all the chemicals and providing high-quality water to the boiler.

12: Q: What is a reverse osmosis system?

Reverse osmosis is a water treatment technology that uses semi-permeable membranes to remove most pollutants and impurities from water. The membrane allows only water molecules to pass through, while most dissolved solids and pollutants are blocked. The technology removes up to 99% of impurities and contaminants.

13: Q: Is it possible to use reverse osmosis to remove 100% of suspended particles from feed water and achieve 100% water recovery?

The shortest answer is no. Superior industrial reverse osmosis systems remove solid particles from the water up to 0.001 microns, blocking most contaminants (95% and above). During the operation of an industrial reverse osmosis system, approximately 50% to 75% of the filtered feed water can be recovered for recovery.

14: Q: What is the difference between Nano-filtration(NF) and Reverse Osmosis (RO) ?

Reverse osmosis and nanofiltration are similar in appearance and function. Both systems force water through membrane filters, removing unwanted contaminants from the water.

The main difference between the two is that nanofiltration does not absolutely block dissolved minerals but allows 15% of dissolved minerals to exist in the water. Reverse osmosis will block 90% or more of the same minerals.

Nanofiltration is mainly used to purify drinking water. Since minerals can cause damage to industrial systems such as boilers, reverse osmosis is still the preferred filtration method for industrial purposes.

15: Q: Which type of filtering method is most suitable for industrial water treatment?

What you’re aiming to remove will have a big impact on the kind of filtration system you choose. For substances such as chlorine, you only need to use activated carbon filters. For water with too much hardness, the industrial water softening system is needed to deal with.

For iron-removing or suspended sediments, the best way to deal with them is filtering through oxidation and depth or multimedia filters. For bacteria and viruses in water, reverse osmosis, sub-micron filtration, and ultraviolet sterilization are good choices.

16: Q: What does a water filter do?

Water filters are physical barriers that can block or retain impurities and solid particles in water or wastewater, and some even prevent bacteria from passing through. In general, the size of the gaps in the filter barrier or membrane will determine how quickly water flows. Brother Filtration has a variety of industrial filters to choose from, considering the most ideal solution in combination with different dimensions such as water quality and industrial needs.

17: Q: What is the difference between the gravity water filter and the pressure water filter?

Gravity water filter is to use gravity to promote water through the sand or smoke-free coal filter bed to a lower level. Pressure water filters generally use glass fiber or steel pressure vessels, forcing the water to go down through the filter bed.

18: Q: How can industry benefit from water purification?

Nowadays a single water softener or filtration system is not enough to meet the needs of most industries. The use of purified water will be more gentle for industrial equipment, reducing corrosion and maintenance of industrial systems. Especially the cooling tower water system is in great need of durable piping in order to avoid the failure of the whole system.

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