AQUALTRA Pool Filter Cartridge 2-Pack — 120 sq ft C1200/PA120 Compatible, Washable Chlorine-Resistant

High-capacity replacement pool filter cartridge designed to fit PA120/C1200-style housings and trap hair, debris, and sediment for clearer spa and pool water.

If your hot tub or inground/outdoor pool uses a C1200-style cartridge, this two-pack from AQUALTRA provides a direct-fit option with 120 square feet of filtration area per cartridge. Constructed from NSF-certified PET composite media, polypropylene core, and chlorine-resistant end caps, these cartridges are built to handle regular spa chemistry while offering washable reusability. Dimensions match common OEM part numbers so you can replace tired filters quickly without modifying your filter tank.

How will these cartridges improve water clarity?

Each cartridge uses a multi-layer PET composite with an innovative fabric structure that holds fine particles tighter than standard pleated media. That means more hair, sand, and sediment are captured on the cartridge instead of recirculating through the system.

• 120 sq. ft. filtration area per cartridge for higher dirt-holding capacity
• Multi-layer "dirt-locking" fabric reduces passage of fine debris
• Chlorine-resistant end caps preserve seal integrity in spa chemistry

Will these fit my existing filter housing?

The AQUALTRA cartridge is sized to match many common C1200/PA120 compatibility lists, offering a straightforward swap for like-for-like replacements. Always confirm measurements and opening diameters before purchase to ensure a proper fit.

• Overall length: 23 1/4" (approx.)
• Outer diameter: 8 15/16"
• Top and bottom opening: 4" center hole to match OEM adapters

How do I clean and maintain these filters?

The cartridges are washable and reusable, designed for routine rinsing to extend service life. Regular maintenance keeps flow rates up and reduces strain on pumps, so plan to rinse every couple of weeks and perform deeper cleanings as needed.

• Rinse debris with a garden hose; use a filter cleaner for deep soils
• Remove cartridge before chemical soaking to prevent end cap corrosion
• Inspect for tears, crushed pleats, or core damage when cleaning

What quality and safety checks does the product meet?

Materials used in the AQUALTRA cartridge are BPA-free and tested to NSF/ANSI standards relevant to filter materials, helping ensure compatibility with common pool and spa sanitizing routines. The polypropylene core and reinforced end caps are chosen for chemical resistance and structural stability.

• NSF-certified PET composite filtration media
• BPA-free construction across core and end caps
• Chlorine-resistant end caps for extended life in spa environments

Who is this for: Owners of hot tubs, spas, and pools that accept C1200/PA120-style cartridges who want an affordable, high-surface-area replacement that is washable and built from NSF-certified materials. Ideal for anyone replacing worn cartridges, upgrading filtration capacity, or keeping a spare filter on hand for seasonal maintenance. Confirm your filter’s exact dimensions and part compatibility before ordering to ensure a correct fit.