Grefilt C-4950 Hot Tub Filter — 50 sq ft, 2-Pack | Compatible with PRB50-IN, Filbur FC-2390, Jacuzzi J-Series, Guardian 413-212-02

Overview

The Grefilt C-4950 hot tub filter is designed to bring clarity and ease to your spa routine. Built to replace a variety of popular models, this 50 sq ft filter supports steady flow and reliable filtration, helping you enjoy moments of relaxation with less maintenance fuss. It combines a sturdy core with a Trilobal filtration fabric, delivering a balance of capture capability and durability that many spa owners appreciate in daily use.

Key specifications at a glance

• Specifications at a glance: length around 13 5/16 inches, outer diameter 5 inches, top and bottom openings 2 1/8 inches, filtration area 50 sq ft.
• Core and fabric: PP core paired with Trilobal filtration fabric for dependable performance and long-lasting filtration.
• Package: 2 filters per order, so you’re prepared for routine maintenance without constant replacements.

Compatibility and fit

• Perfectly replaces or fits a wide range of models, including PRB50-IN, Unicel C-4950, Filbur FC-2390, and several Jacuzzi J-series and Guardian units.
• Note: This is a compatible spare part from an independent brand designed to work as an alternative to OEM filters.

Ease of installation and maintenance

• Easy installation with no special tools required, making it straightforward to swap in when needed.
• Regular cleaning supports sustained performance—rinse the filter every two weeks and clean as needed to maintain flow.

Durability and safety

• Corrosion-resistant end caps and reinforced polyester fiber contribute to longevity even in humid, pool-side environments.
• NSF-certified filter materials help ensure water purity, aligning with consumer expectations for safe spa experiences.

What you get

Two high-quality filters that are ready to handle routine spa cycles, helping you keep your hot tub water comfortable and inviting.