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Description
Keep spa and pool water crystal clear with the Darlly FC-2386 replacement filter cartridge. Designed by Darlly Filtration, this 2-pack of high‑efficiency cartridges is built to replace worn or damaged filters in a wide range of spa and pool systems, delivering reliable filtration and easy maintenance for your hydrotherapy and recreational soak sessions.
Key specifications at a glance
- Filtration area: 35 sq ft of filtration media (Model DSF-35 skim filter) for strong debris capture and efficient flow.
- Media type: 3 oz filtration media designed to trap dirt, oils, and particulates without restricting water flow.
- Dimensions: Top diameter 2-1/8", bottom diameter 4-15/16", overall length 4-5/8" — a compact, versatile footprint for many cartridge openings.
- Package: Sold as a pair, so you have a ready-to-use replacement or a spare on hand for quick swaps.
- Model and compatibility: FC-2386 replacement cartridge compatible with a broad range of spa/pool systems and commonly cross-referenced part numbers; designed to fit numerous spas and pools that use the DSF-35 style filter.
Why this Darlly replacement stands out
- Wide compatibility: Replaces a long list of part numbers and works with many popular spa brands and configurations, including After Hours Spas (Hydro), Apollo Spas, Aqua Tech Spas, Arizona Pacific (DFA), Beachcomber, Beachcraft Spas, Sundance Spas, Thermo Spas, Waterway systems, and more. If your current cartridge lists FC-2386 or PRB17.5SF-JH-PAIR, this is a direct, reliable upgrade.
- Solid filtration with easy maintenance: The 35 sq ft filtration area, paired with standard 4-8 inch cartridge depth, delivers efficient debris capture while keeping water flow steady, so you spend less time backwashing and more time enjoying your spa.
- Cost-effective two-pack: A pair ensures you’re covered for routine replacements and can rotate or quickly swap dirty elements without downtime.
- Built for performance: Durable construction from a trusted filtration brand helps maintain clean, clear water and extend the life of your spa’s circulation components.
Ideal for
- Home spa owners who want dependable, long-lasting filtration without frequent filter changes
- Service technicians managing multi-brand spa installations requiring a versatile replacement cartridge
- Pool/spa setups employing skim-filter style cartridges in dual-filter configurations
Practical tips for best results
- Rinse the new cartridges thoroughly before installation to remove any loose particulates.
- Inspect the filter housing and seals during replacement; a clean, properly seated cartridge supports optimal flow and filtration.
- Schedule periodic cleanings or replacements based on usage, water chemistry, and debris load to maintain water quality and equipment longevity.
Upgrade to the Darlly FC-2386 40352-2PK and enjoy consistent filtration, clear water, and peace of mind across your spa and pool system.
| Application | After Hours Spas (Hydro), Apollo Spas, Aqua Tech Spas, Arizona Pacific (DFA), Beachcomber, Beachcraft Spas, Canspa Mfg. (Canada), Caribbean/Catalina, Clearwater Spas, DFA/Arizona Pacific, Diamond Back Spas, Discovery Spas, Dynasty Spas, Ester W/Johnny W, Freedom Spas, Gatsby Spas, Grecian Spas, Hydro Spa, Hydro/After Hours Spas, Johnny W/Ester W, Legend Spas, Lifestyle Spas (Canada), PDC Spas, Rainbow/Pentair, Sundance Spas, Thermo Spas, Waterway |
| Bottom Physical Dimension | 2-1/8" |
| Bottom Style | Open |
| Diameter | 4-15/16" |
| Length | 4-5/8" |
| Media Type | 3oz |
| Model | DSF-35 Skim Filter (Sold as Pair) |
| Square Footage | 35 sq ft |
| Top Physical Dimension | 2-1/8" |
| Top Style | Open |