Product Overview

The Pentair Clean & Clear® Plus 420 cartridge filter delivers high-capacity, low-maintenance filtration for larger residential pools. This 4-pack bundle includes everything needed to keep your pool’s water pristine: four cartridges combined with 420 square feet of total filter surface area. With its corrosion-resistant tank, non-woven cartridges, and easy servicing, this bundle reduces cleaning frequency while maintaining excellent water clarity.

Key Features

• Four cartridge elements for maximum filtration area and extended time between cleanings.

• 420 sq ft of effective filtration surface – captures fine particles efficiently. Corrosion-resistant fiberglass-reinforced polypropylene tank construction. Lock-ring (or tension clamp) for easy access and sealing safety. Continuous High Flow™ internal air relief to eliminate trapped air and maintain efficiency. Included drain clean-out port for winterization or cleaning. 

• • ✅ Why Choose Unicel Cartridges

    1. High-Quality Filter Media

       • Unicel uses Reemay® spunbond polyester, one of the industry’s most durable and efficient filtration materials.

       • Provides consistent micron rating and better dirt-holding capacity than many generic filters.

    2. Durability and Longevity

       • Heavier end caps (often made with durable polyurethane) resist cracking and chemical damage.

       • Reinforced cores stand up to high pressure and cleaning, so they last longer before replacement.

    3. Precise Fit

       • Unicel manufactures cartridges to OEM (original equipment manufacturer) specifications, ensuring a proper fit in pool and spa filter housings.

       • Reduces bypass (where unfiltered water sneaks past) and improves filtration efficiency.

    4. Brand Reputation

       • Unicel has been in the filtration industry for decades and is widely regarded as a premium choice.

       • Trusted by many pool service professionals for reliability.

    5. Ease of Cleaning

       • Their open-core design and durable pleats make them easier to hose down and clean compared to cheaper cartridges that collapse or fray.

  Customer-Facing Q&A

  Q: How often do I need to clean the cartridges?
  A: Clean when the filter pressure gauge reads about 10 PSI higher than the starting (clean) pressure. Depending on usage, this may be monthly or as needed. 

  Q: Will this bundle work in place of my current cartridge filter?
  A: It’s compatible if your system is built for a Clean & Clear Plus 420 or similar filter. Make sure your plumbing and pump can handle flow rates required for 420 sq ft of surface area.

  Q: Does this require backwashing?
  A: No. This cartridge filter system does not require backwashing—just remove and rinse the cartridges when needed. 

  Q: What if I need replacement cartridges later?
  A: Replacement cartridges are available through Pentair dealers. Be sure to note your filter model (e.g., CCP420) when ordering.