Darlly Spa Pool Replacement Filter Cartridge 33 Sq Ft 8 Inch Outer Diameter 14 Inch Length Model 70331 C7633

Refresh your spa or pool with the Darlly Spa/Pool Replacement Filter Cartridge (70331) [C-7633], a trusted upgrade built for longevity and dependable filtration. Designed around a 33 square foot filtration surface, this cartridge delivers excellent debris capture and consistent flow, helping you enjoy clearer water with less maintenance.

Key features at a glance

• Filtration area: 33 sq ft of media to trap dirt, oils, and fine particulates between cleanings.
• Dimensions: 14" in length with an outer diameter of 8"; top and bottom openings for versatile installation.
• Open-end design: Top opening and bottom opening configurations (Top: 2-15/16"; Bottom: 2-15/16" with a bottom diameter of 7"), enabling easy replacement and reliable water flow.
• Media type: 4 oz of filtration media tuned for strong particulate capture and efficient flow.
• Model compatibility: Cross-references to common cartridges ensure a broad fit across many systems.
• Compatibility and applications: Replaces multiple part numbers and is suitable for Purex/Pentair spa and pool filtration setups.

Why this cartridge stands out

• Direct replacement, wide compatibility — It’s engineered to replace a long list of OEM and aftermarket cartridges, including part numbers such as 645544021151, AK-6024, AK-6077, C-7633, FC-2115, FC-2120, FC-3462, P05237, PLE-051-9535, PLE-051-9536, and PPF33. If your system is built around Purex or Pentair platforms, this cartridge is designed to fit without adapters or custom configurations.
• Significant filtration capacity — With 33 sq ft of media, you can enjoy longer intervals between cleanings and more efficient removal of fine debris from spa and pool water.
• Durable, user-friendly design — The open-end construction simplifies installation and backwashing, helping you maintain strong water flow and easy maintenance down the line.
• All-in-one solution for spa and pool care — Whether you’re upgrading an aging cartridge or stocking up for seasonal maintenance, this replacement delivers reliable performance in a compact 14" form factor.

Use cases and ideal customers

• Home spa owners looking for a dependable, easy-to-install replacement cartridge that restores efficient filtration without compromising flow.
• Pool owners using Pentair or Purex filtration systems who need a compatible, widely-supported cartridge option.
• Maintenance-savvy buyers who value a cartridge with broad cross-compatibility and a clear path to backwashing and routine cleaning.

Care and maintenance tips

• Rinse the cartridge with clean water during routine maintenance to remove surface debris and restore flow.
• Keep the ends clean and properly seated during installation to prevent bypass and ensure optimal filtration.
• Monitor pressure and flow; replace the cartridge when flow declines or cleaning no longer restores performance.

Upgrade to the Darlly CF-33/66/100-based cartridge and enjoy clear water, reliable performance, and seamless compatibility with your Purex or Pentair spa and pool filtration systems. Your water deserves a cartridge that combines practical design with proven filtration efficiency—this replacement delivers just that.