Replacement Cartridge for DuoClear Sanitizing System
The DuoClear Nature 2 cartridge lasts six months under normal operating conditions. The cartridge should not be used longer than six 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.

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