Spa & Ice Bath Filter Cartridge 6 Pack (PLFPWW50P3)

Spa & Ice Bath Filter Cartridge 6 Pack (PLFPWW50P3)

High-Capacity Filtration. Strong Water Flow. Built for Heavy Use.

The PLFPWW50P3 is a screw-in filter cartridge built for high-use plunge pools, chillers, and spa systems. Its wide-pleat design maximises debris capture and dirt-holding capacity while maintaining steady water flow, and follows the widely used PWW50P3 format with a 1.5 inch SAE coarse thread base. Sold as a 6 pack.

High-Capacity 50 Micron Filtration

• 50 micron filtration with enhanced dirt-holding capacity
• Wide-pleat spacing improves water flow and extends cartridge life
• Suitable for heavy-duty chillers and high-use spa systems

Screw-In, Easy-Service Design

• 1.5 inch SAE coarse thread base screws securely into the housing
• Built-in top handle makes removal and replacement easy
• Washable between changes to extend service life
• 6 pack keeps spares ready for regular replacement cycles

Compatible With / Replaces

This cartridge follows the standard PWW50P3 format and directly replaces:

• Pleatco: PWW50P3, PWW50
• Unicel: 6CH-940
• Filbur: FC-0359
• Waterway: 817-0050 (Front Access Skimmer - takes 2 cartridges)
• Other OEM part numbers: 03FIL1400, 25252, 378902

Note: this is the coarse (SAE) thread version - it does not replace the fine-thread PWW50P4. All trademarks remain the property of their respective owners and are used for compatibility reference only.

Benefits of the PLFPWW50P3 Filter Cartridge

• High dirt-holding capacity suits heavy-use plunge and spa setups
• Direct replacement for common Pleatco, Unicel, Filbur, and Waterway part numbers
• Secure screw-in thread and top handle make changes quick and clean
• Washable between replacements to maximise cartridge life
• 6 pack means a fresh cartridge is always ready to go

Frequently Asked Questions (FAQs)

Q: Will this fit my spa or ice bath? A: If your system takes a screw-in PWW50P3 style cartridge (approx. 15.2cm diameter, 1.5 inch SAE coarse thread) - or any of the part numbers in the compatibility list above - this cartridge will suit. Check the thread on your existing cartridge: the SAE thread has wide, coarse spirals. If unsure, send us a photo and we'll confirm fit.

Q: Is this the same as a PWW50P4? A: No - the PWW50P3 uses a coarse SAE thread, while the PWW50P4 uses a fine thread. They are not interchangeable, so check your thread type before ordering.

Q: Can I wash and reuse the cartridge? A: Yes - rinsing between changes extends its life. Replace on schedule (or when visibly dirty) to keep water quality and flow consistent.

Q: What if my system uses a drop-in cartridge instead? A: For drop-in (non-threaded) systems, see our 25 micron PLFPRB25-IN and 50 micron PLFPRB50-IN cartridges.

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