Replacement Cartridge for DuoClear Salt Water / Nature2 System – Up to 130,000 Litres Pool Volume
The DuoClear Nature 2 cartridge has a life of about 6 months. The cartridge should not be used longer than 6 continuous months. If the cartridge is not replaced promptly, your pool will not be sanitized properly by the chlorination alone, even at full output. The DuoClear system requires sufficient residual silver provided by the cartridge to sanitize effectively.