A3 Apex Pro Base Unit (Replacement)
$399.95
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Upgrade or safeguard your aquarium system with the A3 Apex Pro Base Unit (Replacement). This package includes the A3 Pro base unit plus calibration solutions for pH (7 & 10) and salinity (53,000). Perfect for: Upgrading from an older A1 Classic or A2–A3 base unit that’s out of warranty Keeping a spare on hand for peace of mind—because Murphy’s Law happens Stay prepared and keep your system running smoothly with a reliable backup.
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