Waterway Plastics Crystal Water Filter Cartridge

This cartridge is specifically designed for the Waterway Crystal Water 420 system. To ensure a perfect fit, verify that your current filter matches the OEM part numbers 817-0131 or 817-0106, and confirm your housing dimensions align with the 26.0625-inch length and 7-inch diameter.

No, this is a cartridge filter, which means it does not require backwashing. You simply remove the cartridge and rinse it with a hose to clean it, eliminating the need for complex plumbing or messy powders.

A 10-15 micron rating indicates the filter's ability to trap very fine particles, such as dirt, algae, and oils, that might pass through coarser filtration systems. This level of filtration is ideal for maintaining high water clarity throughout the swimming season.

The high-capacity pleated design provides a large surface area for water to pass through, which helps reduce back pressure on your pump. By minimizing resistance, this filter helps your equipment run more efficiently and can extend the lifespan of your pump.

While cleaning frequency depends on your pool's usage and environmental debris, you should rinse the cartridge whenever your pressure gauge reads 8-10 PSI above the clean starting pressure. Generally, these polyester cartridges should be replaced every 12 to 18 months to maintain optimal filtration performance.