3 Gallon Water Coolers

water coolers
Used to refer to the type of informal conversation or socializing among office workers that takes place in the communal area in which such a dispenser is located
(Water Cooler) there are two types of water coolers. The corps coolers are 5 gallon drink coolers with a faucet on the bottom to fill up drink cups and the personal water coolers are from ? gallon to a gallon sized and come in many forms. (such as when the contra section uses a clean mini gas can)
(water cooler) a device for cooling and dispensing drinking water
A dispenser of cooled drinking water, typically used in office workplaces
The Water Coolers is a New York City–based music and comedy act performing original songs, sketch comedy and pop parodies about the daily challenges of modern life.

gallon
Equivalent to 3.79 liters
(also used for dry measure) Equivalent to 4.55 liters
A unit of volume for liquid measure equal to four quarts, in particular
United States liquid unit equal to 4 quarts or 3.785 liters
The Scots gallon was a Scottish unit of measurement of liquids that was in use from at least 1661, (possibly 15th century), until the mid 19th century. It was approximately three times larger than an Imperial gallon that was adopted in 1824.
The gallon is a measure of volume approximately equal to four litres. Historically it has had many different definitions, but there are three definitions in current use. In United States customary units there are the liquid (? 3.79 L) and the lesser used dry (? 4.4 L) gallons.

3
three: being one more than two
three: the cardinal number that is the sum of one and one and one
A performance appraisal, employee appraisal, performance review, or (career) development discussion is a method by which the job performance of an employee is evaluated (generally in terms of quality, quantity, cost, and time) typically by the corresponding manager or supervisor .