Reliable RCP045-40EPP Replacement Filter Cartridge | Parker Fulflo ParMax Compatible High Flow Filter
The RCP045-40EPP Replacement Filter Cartridge from MemKway is engineered as a reliable alternative to the Parker Fulflo ParMax RCP Series cartridge. Featuring 4.5 micron polypropylene pleated media, a 40-inch large-diameter design, and an EPDM seal, it delivers efficient particle retention, high dirt-holding capacity, low pressure drop, and stable filtration performance.
Designed with an inside-to-outside flow configuration, this Parker ParMax compatible high flow filter is suitable for RO pretreatment, industrial process water, power generation, chemical processing, and general water treatment. MemKway provides competitive factory pricing, OEM/private label support, and flexible supply for distributors and industrial users.
1. Core Specifications
| Parameter | Specification |
|---|---|
| Brand | MemKway |
| Model | MK-PA-PP045-40E |
| OEM Reference | Parker Fulflo ParMax RCP045-40EPP |
| Compatibility | Designed as a replacement for RCP045-40EPP |
| Micron Rating | 4.5 μm |
| Retention Efficiency | 99.98% |
| Filter Media | Multi-Layer Pleated Polypropylene |
| Seal Material | EPDM |
| Flow Direction | Inside-to-Outside |
| Nominal Length | 40 in (1016 mm) |
| Outside Diameter | 6 in (152 mm) |
| Inside Diameter | 3.0 in (76 mm) |
| End Configuration | 435 O-ring / Closed |
2. Materials of Construction
Component | Material |
Filter Media | Polypropylene |
Support Layer | Polypropylene |
End Cap | Polypropylene |
Inner/Outer Cage | Polypropylene |
O-ring Material | EPDM Standard / Nitrile, Silicone and Viton Optional |
3. Operating Conditions
Parameter | Maximum / Recommended Value |
MaximumOperating Temperature | 82°C (180°F) |
Maximum Forward Differential Pressure | 3.4 bar @ 20°C (50 psid @ 68°F) |
Recommended Change-out Differential Pressure | 2.4 bar @ 20°C (35 psid @ 68°F) |
Maximum Water Flow Rate | 350 gpm / 1,325 lpm |
4. Key Features of RCP045-40EPP Replacement Filter
- Parker ParMax Compatible Design: Designed as a replacement for Parker Fulflo ParMax RCP045-40EPP, providing compatible dimensions and installation configuration.
- 4.5 Micron High-Efficiency Filtration: Delivers 4.5 μm particle retention at 99.98% efficiency for reliable contaminant control and downstream equipment protection.
- Multi-Layer Pleated Polypropylene Media: High-capacity PP pleated construction provides efficient particle removal, high dirt-holding capacity, and extended service life.
- Inside-to-Outside Flow Design: Inside-to-outside flow configuration helps provide stable filtration performance in high-flow industrial systems.
- EPDM Sealing: Equipped with an EPDM seal for reliable sealing performance in compatible water and industrial liquid applications.
- Adhesive-Free Construction: Thermally bonded polypropylene construction uses no media adhesive, helping minimize extractables.
- Cost-Effective Replacement Solution: Provides distributors and industrial users with a practical alternative to OEM cartridges, with OEM/private label and flexible supply options available from MemKway.
5. Typical Applications
The RCP045-40EPP Replacement Filter Cartridge is designed for high-flow liquid filtration systems requiring reliable particle removal, high dirt-holding capacity, and consistent filtration performance. Typical applications include:
- RO Pretreatment: Removal of suspended solids and particulate contaminants before reverse osmosis systems to help protect downstream RO membranes.
- Industrial Water Treatment: High-flow filtration of process water, utility water, and plant water systems.
- Desalination: Pretreatment filtration for seawater and brackish water desalination systems.
- Power Generation: Filtration of cooling water, boiler feedwater pretreatment, and other utility water streams.
- Chemical & Petrochemical Processing: Filtration of compatible process water and industrial liquids where polypropylene media and EPDM sealing are suitable.
- Food & Beverage Processing: Process and utility water filtration applications requiring effective particulate control.
- General Industrial Filtration: Suitable for high-capacity filtration systems requiring 4.5 micron particle retention and reliable downstream equipment protection.
6. Quality & Regulatory Compliance
- Certification: Manufactured in an ISO 9001:2015 certified facility.
- Standards: CE marked for international safety and quality standards.
- Food Contact: Materials comply with FDA 21 CFR requirements for food & beverage contact.
7. Cross-Reference Disclaimer
Parker, Fulflo ParMax are registered trademarks of their respective owners. MemKway is an independent manufacturer of high-quality equivalent filters. Any reference to original part numbers (RCP045-40EPP) is for comparison and compatibility information only.
Frequently Asked Questions (FAQ)
Q1: What is MemKway MK-PA-PP045-40E?
A:MemKway MK-PA-PP045-40E is a Parker Fulflo ParMax RCP045-40EPP compatible high flow cartridge featuring 4.5 micron polypropylene media and an EPDM seal.
A: Manufactured in strict accordance with OEM criteria, this RCP045-40EPP replacement filter matches original model perfectly in dimensional tolerance and filtration performance.
A: They are suitable for RO pretreatment, process water, industrial water treatment, power generation, and other high-flow liquid filtration systems.
A: MemKway provides a cost-effective Parker ParMax replacement solution with reliable filtration performance, OEM/private label support, flexible quantities, and global supply.

