Definitions for "Anti-Siphon"
An object designed for CO2 tanks to trap liquid Carbon Dioxide (CO2) in the tank allowing CO2 to turn into gas.
Preventive device for the backflow of liquid into a system. Used on toilet and urinal systems to prevent water from trickling back into the supply that is feeding it. Doesn't help with snake bites.
A device that prevents the backflow of liquid into a system. Commonly used on sprinkler systems to prevent water from dripping back into the supply that is feeding it.
Keywords:  snorkel, diver, bottle, fits, tube
a J shaped tube that fits inside the bottle, and works like a skin diver's snorkel