Description
Refresh crystal-clear water in your spa with the Darlly Spa/Pool Replacement Filter Cartridge 25 sq ft, model CFR15 (FC-1415). Designed for Jacuzzi/Whirlpool bottom-mount canister systems, this 25 square-foot cartridge delivers reliable filtration and easy maintenance between spa cleanings.
Key specifications
- Filtration area: 25 sq ft of effective surface area for thorough debris capture
- Dimensions: 5" outer diameter, 13-5/16" length
- End openings: Top Open and Bottom Open for straightforward installation
- End-fitment: Bottom opening width 2-3/8" and Top opening width 2-3/8" to match common canister housings
- Media: 4 oz filter media designed to trap dirt, oil, and particulates
- Model/compatibility: CFR15, FC-1415; part number 50251
- Application: Spa and pool filtration systems, especially Jacuzzi/Whirlpool bottom-feed canisters
Why this CFR15 cartridge stands out
Unlike generic replacements, the Darlly CFR15 25 sq ft cartridge is purpose-built for bottom-feed Jacuzzi/Whirlpool canister setups, providing a reliable balance of flow and filtration. The open-end design simplifies installation and ensures robust water flow through the cartridge, helping to maintain steady pump performance and clear water between cleanings. With a 25 sq ft filtration area, you’ll capture more debris with each pass, extending the time between cleanings and preserving your spa’s circulation efficiency.
Ideal for
- Hot tub and spa owners using 5" canister housings seeking a precise 25 sq ft replacement
- Jacuzzi and Whirlpool enthusiasts who want a dependable, easy-to-install cartridge
- Service professionals looking for a consistent CFR15-compatible option for maintenanced canister systems
Practical guidance and best-use tips
To maximize filtration efficiency and cartridge life:
- Inspect the cartridge regularly for signs of clogging or reduced flow; replace when flow drops or pressure rises noticeably
- Rinse the cartridge with clean water between replacements to extend its useful life
- Avoid harsh chemical cleaners that could degrade the media; follow spa manufacturer guidelines for chemical balance
- Ensure the cartridge is seated correctly in the housing to prevent bypass and maintain optimal filtration
Make the Darlly CFR15 25 sq ft replacement cartridge your go-to choice for reliable spa filtration. It’s a practical, compatible solution that keeps your Jacuzzi whirlpool water clean, clear, and inviting—so you can spend more time enjoying the feel of pristine bubbles and the peace of mind that comes with well-filtered water.
| Application | Jacuzzi Whirlpool |
| Bottom Physical Dimension | 2-3/8" |
| Bottom Style | Open |
| Diameter | 5" |
| Length | 13-5/16" |
| Media Type | 4oz |
| Model | CFR15 |
| Square Footage | 25 sq ft |
| Top Physical Dimension | 2-3/8" |
| Top Style | Open |