D-D Advanced ATO Auto Top Up System Optical, Float & Flood Detection

D-D Advanced ATO Auto Top Up System Optical, Float & Flood Detection

Marsoni

M251S

$99.99

Get it in 3 business days with 1 day shipping. Friday, May 29

D-D Advanced ATO Auto Top Up System Optical, Float & Flood DetectionThe D D Advanced ATO maintains the water level in your aquarium, automatically replenishing water lost through evaporation. Its main optical sensor has three detection points allowing the unit to not only control the water level at a set point but also to recognise if the water level is below or above normal, triggering an audio and visual alarm. In addition to the main optical sensor a failsafe Anti Overflow float sensor is included that will shut

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Great little ball with a high pitched squeak and a nice bounce. I recommend going with a bigger size than you think you need. They have the sizes in the discription and I thought the medium size would be perfect for my 45 lb dog but it was a little too small for her. Also my dog doesn’t tend to chew heavily, but I can imagine that some dogs might manage to break through the rubber without much effort because the rubber is soft enough to easily squeeze for the squeak.

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Reviewed in the United States on June 10, 2025

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Amazon Customer

Battle Creek, US

★★★★★ 5

Best Balls for aggressive chewers.

I have a bully and shepherd that tear up toys in 30 seconds. They got these for Xmas and it’s been over a week and they are still around in one piece. Very good quality. They have not been able to kill the squeaker.

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Reviewed in the United States on January 2, 2026

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San Leandro, US

★★★★★ 5

Large tennis balls

Color: Mixed Color, Size: Large (Pack of 12)

These bald were great for a dog birthday party gift bag. The dogs loved them. They are a little larger than a regular tennis ball and great for larger dogs.

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Reviewed in the United States on May 30, 2026

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Lolly G.

Fort Morgan, US

★★★★★ 5

Great customer service

The squeakers broke within the first few minutes of my dog playing. But the customer service has been outstanding.

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Reviewed in the United States on January 17, 2026