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Ultimate 4-Sensor ATO Aquarium Auto-Top-Off System - XP Aqua
" Ultimate 4-Sensor ATO Aquarium Auto-Top-Off System - XP Aqua \r\n With 2 X dual-optical sensors, the Ultimate ATO is the first ATO to include 4 sensors. The 4 sensors allow us to design a dual-stage overfill alarm that is less intrusive as well as a run-dry protection feature that prevents yo...
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