Filfresh 5×13 drop‑in hot tub filter cartridge fits PRB25‑IN, 2‑Pack

Description

Product Overview

The Filfresh 5×13 drop‑in hot tub filter cartridge is a precision‑engineered replacement designed to fit a wide range of popular spa models, including Pleatco PRB25‑IN, Unicel C‑4326, Filbur FC‑2375/FC‑2370, Guardian 413‑106, and many others. Measuring 5 inches in diameter and 13‑5/16 inches in length, the cartridge provides 25 square feet of filtration surface, ensuring ample capacity for even the most active hot tubs. Constructed from high‑grade, NSF‑50 certified materials, the filter features corrosion‑resistant end caps that can withstand harsh chemicals and high temperatures without degrading. The reinforced pleated fibers employ an ultrafine particle technology that captures three times more debris than standard cartridges, effectively trapping leaves, hair, sand, oily residue, and fine sediment. This advanced design not only improves water clarity but also extends the interval between cleanings, allowing owners to enjoy crystal‑clear water with less maintenance.

Usage

Designed for residential and commercial hot tubs alike, this filter cartridge is ideal for daily spa use, therapeutic hydrotherapy sessions, and high‑traffic pool environments. Whether you are a homeowner looking to maintain a relaxing backyard oasis or a spa manager responsible for multiple units, the Filfresh cartridge delivers consistent performance. Its drop‑in design simplifies installation: simply remove the old cartridge, insert the new one, and secure the end caps. The free‑flow core promotes optimal water circulation, reducing the risk of clogs and ensuring even distribution of debris throughout the filter media. This makes the Filfresh cartridge suitable for year‑round operation, even in areas with heavy foliage or high mineral content. The 2‑Pack offering provides a spare cartridge, allowing you to rotate filters and maintain continuous filtration without downtime.

Why Choose Us

Filfresh stands out in the crowded market of hot tub filters by combining rigorous quality standards with user‑focused design. Each cartridge undergoes NSF‑50 certification testing, guaranteeing that the materials meet strict health and safety criteria. The corrosion‑resistant end caps are engineered to survive exposure to chlorine, bromine, and other sanitizers, preventing premature wear and ensuring a longer service life. Reinforced pleated fibers maintain their shape and filtration efficiency over countless cleaning cycles, reducing the need for frequent replacements. Additionally, Filfresh offers responsive customer support and a hassle‑free warranty, giving you confidence that any issues will be addressed promptly. Our commitment to durability, performance, and after‑sales service makes the Filfresh cartridge a reliable choice for discerning spa owners.

Key Features

• Exact fit for PRB25‑IN and compatible models, eliminating guesswork during replacement.
• NSF‑50 certified construction ensures safe, chemical‑resistant operation.
• Reinforced pleated fibers capture three times more debris, delivering clearer water.
• Corrosion‑resistant end caps prevent degradation from harsh sanitizers.
• Dedicated customer support and warranty for peace of mind.

FAQ

How do I install the Filfresh filter cartridge?

Turn off the hot tub pump, release the pressure, remove the old cartridge, insert the new Filfresh cartridge with the pleated side facing the water flow, and securely tighten the end caps. Restart the pump and enjoy improved filtration.

Can I use this filter with other brands besides Pleatco?

Yes, the cartridge is compatible with Unicel C‑4326, Filbur FC‑2375/FC‑2370, Guardian 413‑106, and other models that share the PRB25‑IN dimensions.

How often should I clean the filter?

Thanks to the free‑flow core and advanced fiber design, most users find that cleaning once a month is sufficient, though heavily used spas may require bi‑weekly maintenance.

Is the filter reusable after cleaning?

Absolutely. The cartridge is washable and reusable; simply rinse it with a garden hose or soak in a filter cleaning solution to restore performance.

What warranty does Filfresh provide?

Filfresh offers a one‑year limited warranty covering manufacturing defects, backed by responsive customer service to address any concerns.