3M CUNO High Flow Filter Replacement Cartridges
MemKway manufactures compatible 3M CUNO high flow filter replacement cartridges for industrial water treatment systems. Our replacement range is engineered for compatibility with 3M CUNO 740B and HF Series filter housings, providing reliable filtration performance without requiring equipment modification.
Available in multiple lengths, micron ratings and sealing configurations, our CUNO water filter cartridges are widely used in RO pretreatment, power generation, chemical processing, food and beverage production, and municipal water treatment. These CUNO replacement filter cartridges offer high flow capacity, low pressure drop and excellent dirt-holding performance.
Whether you need replacement 3M CUNO filters, CUNO filter parts or assistance identifying a CUNO water filter replacement cartridge, MemKway can provide model cross-referencing, samples, OEM labeling and customized filtration solutions.
3M CUNO 740B Series Replacement Filters
MemKway 740B Series cartridges are designed as direct replacements for 3M CUNO 740B high flow filters. Available in 40-inch and 60-inch configurations, these polypropylene cartridges provide dependable particle removal, high flow capacity and straightforward installation in compatible filter housings.
3M CUNO HF Series Replacement Filters
MemKway H Series filter cartridges feature an integrated handle and radial pleat structure for convenient installation and efficient industrial filtration. Multiple micron ratings, lengths and gasket configurations are available for RO pretreatment and process-water applications.
3M CUNO High Flow Filter Cross Reference
| OEM Model | MemKway Model | Length | Micron Rating | Series |
| 740B40PP001D1 | MK-740B40PP001N | 40 in | 1 μm | 740B |
| 740B40PP002D1 | MK-740B40PP002N | 40 in | 2 μm | 740B |
| 740B40PP005D1 | MK-740B40PP005N | 40 in | 5 μm | 740B |
| 740B40PP010D1 | MK-740B40PP010N | 40 in | 10 μm | 740B |
| 740B40PP015D1 | MK-740B40PP015N | 40 in | 15 μm | 740B |
| 740B40PP025D1 | MK-740B40PP025N | 40 in | 25 μm | 740B |
| 740B40PP040D1 | MK-740B40PP040N | 40 in | 40 μm | 740B |
| 740B40PP040B1 | MK-740B40PP040V | 40 in | 40 μm | 740B |
| 740B40PP070D1 | MK-740B40PP070N | 40 in | 70 μm | 740B |
| HF40PP001A01 | MK-H40PP001S | 40 in | 1 μm | HF |
| HF40PP001C01 | MK-H40PP001E | 40 in | 1 μm | HF |
| HF40PP002B01 | MK-H40PP002V | 40 in | 2 μm | HF |
| HF40PP005A01 | MK-H40PP005S | 40 in | 5 μm | HF |
| HF40PP005B01 | MK-H40PP005V | 40 in | 5 μm | HF |
| HF40PP010A01 | MK-H40PP010S | 40 in | 10 μm | HF |
| HF40PP010D01 | MK-H40PP010N | 40 in | 10 μm | HF |
| HF40PP015D01 | MK-H40PP015N | 40 in | 15 μm | HF |
| HF40PP040A01 | MK-H40PP040S | 40 in | 40 μm | HF |
| HF40PP040D01 | MK-H40PP040N | 40 in | 40 μm | HF |
| HF40PP040C01 | MK-H40PP040E | 40 in | 40 μm | HF |
| HF40PP070B01 | MK-H40PP070V | 40 in | 70 μm | HF |
| HF60PP010A01 | MK-H60PP010S | 60 in | 10 μm | HF |
| HF60PP010B01 | MK-H60PP010V | 60 in | 10 μm | HF |
| HF60PP001A01 | MK-H60PP001S | 60 in | 1 μm | HF |
| HF60PP001C01 | MK-H60PP001E | 60 in | 1 μm | HF |
| HF60PP005A01 | MK-H60PP005S | 60 in | 5 μm | HF |
| HF60PP005B01 | MK-H60PP005V | 60 in | 5 μm | HF |
| HF60PP005C01 | MK-H60PP005E | 60 in | 5 μm | HF |
| HF60PP025B01 | MK-H60PP025V | 60 in | 25 μm | HF |
| HF60PP040A01 | MK-H60PP040S | 60 in | 40 μm | HF |
| HF60PP040B01 | MK-H60PP040V | 60 in | 40 μm | HF |
Looking for a Legacy CUNO Filter Replacement?
Many industrial filtration systems still use legacy CUNO model names and part numbers. If your existing cartridge is labeled CUNO, or you are unsure which current 3M / MemKway model matches your filter, use our CUNO cross reference guide to identify compatible options by OEM part number, cartridge size, micron rating and seal configuration.

Why Choose MemKway 3M CUNO Replacement Filter Cartridges?
MemKway manufactures reliable CUNO replacement filter cartridges for industrial water and process filtration applications. Our replacement range is engineered to fit compatible 3M CUNO 740B and HF Series filter housings, helping users replace existing cartridges without unnecessary equipment changes.
Compatible Replacement Options
MemKway supplies replacement cartridges for a wide range of 3M CUNO filters, including popular 740B and HF Series models. Multiple lengths, micron ratings and sealing configurations are available to meet different filtration requirements.
Reliable Filtration Performance
Our CUNO water filter cartridges use high-quality polypropylene media and optimized pleat structures to provide stable particle retention, high flow capacity, low initial pressure drop and dependable dirt-holding performance.
Lower Replacement Costs
MemKway CUNO water filter replacement cartridges provide a cost-effective alternative for routine cartridge replacement. They help industrial users reduce filtration expenses while maintaining reliable system operation.
OEM and Custom Services
OEM labeling, private packaging and customized filter specifications are available for distributors, filtration companies and industrial water treatment contractors. Send us your required model or application conditions for evaluation.
Fast Model Cross-Reference
Not sure which cartridge you need? Send us the original filter model, product photo or operating parameters. Our team will help identify the corresponding MemKway replacement and provide a quotation.
Applications of 3M CUNO High Flow Filter Replacement
MemKway replacement cartridges for 3M CUNO water filters are designed for high-flow industrial liquid filtration. Different media, micron ratings and cartridge configurations can be selected according to water quality, operating conditions and filtration targets.
RO Pretreatment
Removes suspended solids and particulate contaminants before reverse osmosis membranes, helping reduce membrane fouling and extend RO system service intervals.
Power Generation
Used for boiler feedwater, condensate polishing, cooling water and general process-water filtration in power plants.
Chemical Processing
Provides dependable particulate removal from process water and compatible chemical liquids under suitable operating conditions.
Food and Beverage Processing
Suitable for applicable process-water and utility-water filtration where consistent flow and controlled particle removal are required.
Municipal Water Treatment
Used in clarification, pretreatment and polishing stages to help improve water quality before downstream treatment.
Industrial Process Water
Supports filtration in electronics, manufacturing, desalination and other industrial water systems requiring high flow capacity and efficient contaminant control.
How to Select the Correct CUNO Replacement Filter Cartridge
Selecting the correct cartridge requires more than matching the filter length. To ensure proper compatibility and filtration performance, confirm the following information before ordering.
1. Original Filter Model
Provide the complete OEM part number printed on the existing filter cartridge, packaging or equipment documentation. Examples include 740B40PP001D1 and HF60PP010A01.
2. Cartridge Length
Confirm whether the existing cartridge is a 40-inch or 60-inch configuration. The replacement cartridge must match the housing dimensions.
3. Micron Rating
Choose the required filtration rating according to the contaminant size, feedwater quality and downstream equipment. Common options include 1, 2, 5, 10, 40 and 70 microns, depending on the series.
4. Seal Configuration
Check the end connection and gasket or O-ring configuration of the existing cartridge. Seal material should also be selected according to fluid compatibility and operating temperature.
5. Operating Conditions
Provide the operating flow rate, pressure, temperature, liquid type and application. This information helps MemKway confirm whether the selected CUNO filter parts are suitable for your system.
6. Housing Information
If the OEM model is unavailable, send us clear photos and the dimensions of the existing cartridge and filter housing. Our technical team can assist with product identification.
Need help selecting a replacement? Send your OEM part number and operating conditions to sales@memkway.com for model cross-referencing and a quotation.
Frequently Asked Questions
1. Are MemKway cartridges compatible with 3M CUNO filter housings?
MemKway replacement cartridges are engineered for use in compatible 3M CUNO 740B and HF Series housings. Please provide the complete OEM model before ordering so we can verify the dimensions and connection configuration.
2. Which 3M CUNO filter models can MemKway replace?
Our replacement range covers many popular 740B, HF40 and HF60 Series models. Send us the original part number, and we will identify the corresponding MemKway replacement cartridge.
3. What micron ratings are available?
Available ratings include common options from 1 to 70 microns, depending on the cartridge series, length and filter configuration. Custom filtration ratings may also be evaluated.
4. What information is required for product cross-referencing?
The complete OEM model is normally sufficient. If it is unavailable, provide the cartridge length, micron rating, end connection, seal material, application and clear product photos.
5. Can I use a different micron rating from the original cartridge?
A different rating may affect pressure drop, dirt-holding capacity and downstream protection. The replacement rating should be selected according to the system requirements rather than changed without evaluation.
6. Are MemKway cartridges original 3M products?
No. MemKway cartridges are independently manufactured compatible replacement products. They are not manufactured, authorized or endorsed by 3M.
7. Do you provide samples?
Yes. Samples can be arranged for compatible models, subject to product specifications and availability. Contact us with the required part number and quantity.
8. Can you provide OEM labeling and private packaging?
Yes. MemKway supports OEM labeling, private packaging and customized product identification for distributors and filtration companies.
9. How can I request a quotation?
Send the OEM part number, required quantity, application and destination country to sales@memkway.com. Our team will confirm the replacement model and provide a quotation.
Can't Find Your 3M CUNO Filter Model?
Send us your existing 3M CUNO part number for cross-reference confirmation, technical information and quotation.
OEM part number cross-reference • Technical confirmation • Quotation support




























