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The worlds smallest and smartest ATO on the market! Ideal for your new Waterbox Aquarium, different models for sumps or sumpless models
World’s Smallest Dual-Sensor Aquarium Auto Top Off
World’s smallest dual-sensor ATO
Two layers overfill protection
Intelligent QST programming
Secondary optical sensor
Flexi Surface Skimmer & Media Reactor
Versatile Surface Skimmer & Media Reactor
Versatile Up-Flow or Down-Flow Installation Options
Efficient DC Pump
Great for just about any filter media:...
Complete ATO & Surface Skimmer for Sumpless Aquariums
Engineered Specifically for Aquariums without Sumps
Dual-Optical Sensor for Precise Operation with Secondary Failsafe
Ultimate 4-Sensor ATO Aquarium Auto-Top-Off System - XP Aqu
Ultimate in Protection, Ultimate in Precision & Ultimate in Versatility
World’s first 4-sensor ATO
One sensor for...