Darlly [70306] PMA40-F2M FC-0418 Spa/Pool Filter Cartridge

Darlly [70306] PMA40-F2M FC-0418 Spa/Pool Spa/Pool Filter Cartridge

Type:	Filters
Mfg	Darlly Filtration
Mfg Part #	70306
Hzn Part #	17-777-1903
Filbur Part #	FC-0418
Pleatco Part #	PMA40-F2M
Darlly Part #	70306
Replaces:	303896, 645544004185, FBM-051-0418, FC-0418, PC-0418, PLE-051-9502, X268080
Top Style:	Handle
Top Dimension:	Handle
Bottom Style:	Male Pipe Thread (MPT)
Bottom Dimension:	2-3/8"
Length:	7-3/16"
Square Feet:	30
Outside Diameter:	7-1/8"
Works With:	Spa Crest, Master Spas Legacy / Freedom

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TAGS: filters, pleatco

Details

A replacement filter cartridge helps capture suspended debris in a compatible spa or pool filtration system, and this cartridge cross-references Darlly 70306, PMA40-F2M, and FC-0418. Filter cartridges are useful because they help protect circulation equipment while supporting clearer water and more dependable routine maintenance.

This cartridge has practical value because the multiple cross-reference identifiers make it easier to match against existing filter markings during service or replacement. A properly selected cartridge helps preserve intended fit and contributes to more reliable filtration performance without needing to replace the larger filter housing.

This type of part is especially useful when the original cartridge has become clogged beyond practical cleaning, damaged, or too worn to maintain dependable flow and debris capture. That helps restore system performance with a direct filtration replacement.

Installed in the proper application, this filter cartridge helps support cleaner water, steadier circulation, and more confident maintenance results.

Replacement spa and pool filter cartridge with Darlly 70306, PMA40-F2M, and FC-0418 cross references
Helps capture suspended debris in compatible filtration systems
Useful when replacing a worn or heavily used original cartridge
Supports cleaner water and dependable circulation performance
Improves replacement matching and service confidence

Darlly Filtration – Pool & Spa Filter Cartridges and Replacement Filters

Who is Darlly Filtration?

Darlly Filtration is a global leader in the manufacturing of pool and spa filter cartridges, known for producing high-quality, OEM-compatible replacement filters. With advanced engineering and large-scale production capabilities, Darlly supplies filters used by major brands worldwide. Their reputation for consistency, performance, and value has made them a trusted choice for both residential and commercial pool and spa owners.

What products does Darlly Filtration specialize in?

Darlly specializes in filter cartridges and replacement filters for pools, spas, and hot tubs. Their product lineup includes pleated filter cartridges designed to capture fine debris, dirt, and contaminants while maintaining optimal water flow. Darlly filters are available in a wide range of sizes and configurations, making them compatible with many leading equipment brands.

Why choose Darlly Filtration parts for your pool or spa?

Darlly filters are known for high filtration efficiency, durability, and cost-effective performance. Their cartridges are engineered to provide excellent water clarity while extending filter life and reducing maintenance frequency. Customers choose Darlly for reliable replacement filters that offer a strong balance of quality, compatibility, and value.

How do you identify and choose the correct Darlly Filtration part?

To select the correct Darlly filter, it’s important to match your existing cartridge’s dimensions, including length, diameter, and top/bottom configuration. Cross-referencing part numbers or filter model compatibility ensures proper fit and performance. You can use our FILTER FINDER to help you find the proper filter in minutes. Choosing the correct filter helps maintain water clarity, improve system efficiency, and protect pool and spa equipment.

Need help finding the right Darlly Filtration part?

At Bath & Spa Parts Online, we carry a wide selection of Darlly Filtration pool, spa, and bath parts ready to ship. Can’t find what you need? Contact our Product Specialists at 800-918-9143, use the live chat, or visit our Contact Us page. For installation guides, part diagrams, and troubleshooting resources, visit the Bath & Spa Parts Online Knowledge Base for expert support.