TOREAD 6CH-940 Spa Filter

The essentials

This high performance hot tub filter is designed to fit the 6CH-940 and PWW50P3 cartridges with a precise 1 1/2 inch SAE thread. It features a robust 50 micron filtration layer to capture fine debris and hair, helping your spa stay clearer for longer. With a heavy duty 4 oz fabric, it offers improved dirt holding capacity while maintaining strong flow under pump pressure. The cartridge is NSF/ANSI 50 certified for safety and durability, giving confidence in a reliable, long lasting replacement for UK hot tubs. For best results, rinse every two weeks and reuse to keep your spa water sparkling between full filter changes. A practical choice for everyday spa maintenance that balances performance with value.

The TOREAD filter is a practical replacement for Unicel 6CH-940 FC-0359 and similar models, making it a versatile option for many UK hot tubs. Its precise dimensions mean a snug fit when installed in compatible filter housings, and the heavy duty end caps provide extra resilience against chlorine and other spa chemicals. Users report easier maintenance thanks to the filter’s rinsing friendly Trilobal fabric structure, which releases trapped dirt quickly, reducing downtime and extending filter life. This means you can focus more on relaxation and less on ongoing maintenance, a sensible upgrade for busy households.

If you’re upgrading from a lower grade 3 oz filter, you’ll notice the difference in dirt retention and water clarity. The 50 micron layer excels at catching smaller particles, while the reinforced core helps maintain performance under higher flow. The filter’s longevity is reinforced by chlorine resistant end caps and a design built to last, offering a practical balance of durability and cost effectiveness over time. In short, it keeps spa water clearer with less chemical strain, supporting a pleasant soak every time.

This replacement is ideal for UK spas that require a standard 20.5 cm length, 15.2 cm diameter cartridge with a 1 1/2 inch thread. The pack includes two filters, making it easy to rotate between cleanings and maintain steady filtration throughout the season. For best value, pair it with compatible filter housings and schedule regular maintenance to maximise performance and life of both filter and spa.

Technical details

• Name: TOREAD Hot Tub Filter 6CH-940 PWW50P3
• Type: Spa cartridge filter
• Size: 20.5 cm length
• Dimensions: 15.2 cm outside diameter
• Thread: 1 1/2" SAE
• Material: 4 oz heavy duty polyester fabric
• Filtration: 50 micron high efficiency layer
• Certification: NSF/ANSI 50
• Compatibility: Replaces Unicel 6CH-940 and FC-0359
• Life: Approx. 30% longer than standard alternatives
• Care: Reusable with easy rinse every 2 weeks