Description
Meet the Darlly Spa/Pool Replacement Filter Cartridge [70561] [PA56-SV] [C-7458], a durable, high‑capacity cartridge engineered to keep your spa or pool water clean with less maintenance. This replacement cartridge is a trusted choice for Hayward bottom‑style systems and is compatible with a wide range of part numbers, making it a versatile, ready‑to‑install upgrade for your filtration setup.
- 56 square feet of pleated media for extensive debris capture and longer intervals between cleanings.
- media type: 4‑oz filtration media designed to balance strong particle capture with steady water flow, helping to maintain efficient circulation.
- dimensions: 7" outer diameter, 13-5/16" length, with a 3" top opening for a secure, compatible fit in standard filter housings.
- top/bottom connections: open top and bottom configurations designed for straightforward installation in Hayward SwimClear installations.
- replacements and compatibility: Replaces numerous part numbers including 15601, 4900-395, 4904-013, 645544012234, AK-60428, C-7458, CX480XRE, PA56-SV, PA56SV, PC-1223, PLE-051-9143, PLE-051-9299, PLE-051-9300, PLE-051-9301, C-7304, ensuring a seamless swap in compatible systems.
- system compatibility: specifically designed to work with SwimClear C-2025 assemblies (4 cartridges required per system) for reliable, balanced filtration.
Why this Darlly cartridge stands out in real-world use. The 56 sq ft filtration area means more surface for dirt and contaminants to be trapped per pass, which translates to higher cleanliness and longer intervals between cleanings compared with smaller cartridges. The robust pleated design maintains consistent flow even as dirt loads increase, helping your pump run more efficiently and preserving your pool or spa’s circulating performance over time.
Who should consider this replacement cartridge? It’s ideal for pool and spa owners with Hayward bottom‑style filtration systems that call for PA56‑SV/C‑7458 equivalents, as well as technicians seeking a reliable, widely compatible replacement for SwimClear C‑2025 configurations. If your setup uses four cartridges in a SwimClear chamber, this Darlly model delivers a straightforward swap with a snug, leak‑free fit.
Practical tips for best results:
- Before first use, rinse the cartridge under cool water to remove any loose manufacturing debris and maximize flow from day one.
- During regular use, monitor the system’s pressure gauge. If the pressure rise exceeds your baseline by 8–10 psi, it’s time to clean or replace the cartridge to restore optimal flow.
- Spread wear evenly by rotating among all four SwimClear cartridges in your chamber, ensuring balanced filtration and consistent water quality.
- Follow your pool or spa’s maintenance schedule: in typical residential use, replace cartridges every 12–24 months, or sooner if you notice persistent cloudy water or frequent filter cleaning.
Choosing the Darlly 70561 replacement cartridge means you’re selecting a proven, compatible solution that aligns with your existing Hayward filtration setup while delivering dependable performance and straightforward maintenance. If you’re upgrading an older 15601/PA56‑SV/C‑7458 assembly or stocking up for a four‑cartridge SwimClear system, this cartridge is designed to fit your needs and keep your water clean, clear, and inviting.
| Application | Hayward |
| Bottom Physical Dimension | 3" |
| Bottom Style | Open |
| Diameter | 7" |
| Length | 13-5/16" |
| Media Type | 4oz |
| Model | SwimClear C-2025 (4 Req) |
| Square Footage | 56 sq ft |
| Top Physical Dimension | 3" |
| Top Style | Open |

