PACETAP Spa Filter Replacement 1½" SAE Thread 2-Pack — 8¼" x 6", 45 sq ft Trilobal Media

PACETAP 1 1/2" SAE thread screw-in spa filter 2-pack replaces common PWW50P3/FC-0359/6CH-940-style cartridges to restore clear, debris-free hot tub water.

These PACETAP replacement filters are designed for 8 1/4" length, 6" outside diameter spa filter housings with a 1 1/2" SAE threaded bottom and a circular top handle. Each cartridge delivers approximately 45 square feet of trilobal-fiber filtration media to capture hair, leaves, sand, and fine sediment. The pair fits many popular OEM numbers including Pleatco PWW50P3 (note: not PWW50P4), Filbur FC-0359, Unicel 6CH-940, Waterways 817-0050, and others that share the same dimensions and thread type.

How do these replacement filters improve water clarity?

PACETAP filters use a high-performance trilobal fiber media that increases surface area and mechanical capture compared with standard point-bonded fabrics. That improved media traps finer particles while maintaining flow, so the pump doesn’t have to work harder to circulate water.

• 45 sq. ft. filtration area per cartridge for greater dirt-holding capacity
• Trilobal fiber construction captures finer particles like sand and silt
• Designed to keep adequate flow rate for consistent circulation

Which spa models and part numbers are compatible with this 2-pack?

The PACETAP cartridges match common OEM dimensions and the 1 1/2" SAE threaded base, so they are compatible with several popular replacement part numbers. Always verify length, diameter, and thread type before installing.

• Compatible with Pleatco PWW50P3 (not PWW50P4)
• Works for Filbur FC-0359 and Unicel 6CH-940 equivalents
• Fits Waterways 817-0050, Viking spa filter replacements, and many like-sized cartridges

How should I clean and maintain these filters for longest life?

Routine rinsing and occasional deep cleaning extend cartridge life and maintain filtering efficiency. These cartridges are simple to rinse and re-use; deep clean following your hot tub manufacturer's recommendations to avoid damaging the media.

• Rinse with a garden hose after each use to remove loose debris
• Soak periodically in a manufacturer-recommended filter cleaner for deep residue removal
• Allow to dry fully before reinstalling if performing chemical cleaning

What are the physical dimensions and design details I should check before buying?

Confirming dimensions and thread type is critical to ensure the cartridges seat and seal properly. These PACETAP filters have the common spa cartridge profile with a circular top handle for tool-free removal.

• Length: 8 1/4" (overall cartridge height)
• Outside diameter: 6"
• Bottom connection: 1 1/2" SAE threaded screw-in base
• Top design: circular handle for easy grip and removal

Who this is for: Owners and service technicians who need a straightforward, cost-effective replacement for common screw-in spa cartridges. Choose PACETAP if your hot tub uses an 8 1/4" x 6" cartridge with a 1 1/2" SAE threaded base and you want a durable, easy-to-clean filter media with a larger filtration area. Ideal for residential spa upkeep, seasonal maintenance, and shops stocking compatible universal replacements. If you are unsure whether these fit your spa, measure your existing cartridge length, diameter, and thread before purchase to confirm compatibility.