Pleatco PMA40L-F2M-M Replacement Filter Cartridge
Part Number: PMA40L-F2M-M
This replacement cartridge is designed for select Master Spas models and provides 40 sq ft of filter area. It features enhanced media and antimicrobial end-caps to resist bacteria and optimize water clarity and flow in spa systems.
Compatibility & Fitment
- Fits Master Spas Twilight, Legacy and Legend series hot tubs configured for a 6″ diameter by ~9¼″ long cartridge with 2″ MPT bottom thread.
- Cross-reference to OEM numbers such as X268365, X268543.
- Not compatible with spa models redesigned after 2025 unless specified by the manufacturer.
Features & Specifications
- Filter surface area: 40 sq ft
- Outer diameter: approx. 6″
- Length: approx. 9 ¼″ (not including handle or thread extension)
- Media: Antimicrobial infused for enhanced resistance to bacterial growth
- Thread: Bottom opening is 2″ MPT for direct screw-in in spa filter housing
Installation Notes
Before replacing the cartridge, turn off the spa pump and isolate power. Remove the older cartridge by unscrewing from the filter housing. Clean the housing interior of debris, install the new PMA40L-F2M-M cartridge by threading it into place with hand-tight fit, restore circulation, and monitor filter gauge pressure to ensure proper flow restoration.
Maintenance Tip
Clean the cartridge every 4-8 weeks depending on use and water condition. Replace the cartridge annually (or sooner if water flow decreases or pressure rises). Using the antimicrobial version helps maintain clearer spa water and can reduce the frequency of deeper chemical treatments.
