AQUALTRA PRB25-IN Spa Filter – 5 in OD x 13 5/16 in (2 Pack) – Compatible with C-4326, FC-2375, 413-106

Discover the AQUALTRA PRB25-IN Spa Filter

Upgrade your spa filtration with the AQUALTRA PRB25-IN, a durable replacement designed to fit a range of hot tubs. Built with a BPA-free PET composite filtration media, a chlorine-resistant end cap, and a sturdy polypropylene core, this filter emphasizes safety, reliability, and consistent performance for your spa sessions.

Key benefits

• NSF/ANSI certified materials combined with a chlorine-resistant end cap for long-lasting filtration.
• Dirt-Locking fabric captures more debris than standard filters, helping keep water clearer between cleanings.
• Washable and reusable design supports ongoing use with simple rinsing and reloading.
• Two-pack convenience means you’re stocked for routine replacements and maintenance.

Specifications at a glance

• Outer diameter: 5 inches
• Length: 13 5/16 inches
• Opening size (top/bottom): 2 1/8 inches
• Filtration area: 25 square feet
• Material: BPA-free PET composite with a polypropylene core; high chlorine resistance

Real-world use and installation tips

Whether you’re maintaining a busy spa schedule or preparing for guests, this filter helps promote steady flow and cleaner water through the season. The 2-pack keeps you prepared for routine swaps and quick changes after heavy use.

• Compatible with multiple models to simplify shopping and ensure a proper fit when you verify your part number.
• Easy to rinse between uses; avoid corrosion by removing the filter before cleaning.

Care, maintenance, and support

Regular rinsing every couple of weeks helps sustain performance, while allowing the filter to dry before reuse can extend its life.Remember to confirm compatibility with your spa model before purchasing.