[1] Early versions came in the shape of a four-foot tall plastic cylinder attached to a beer tap at the bottom.
Chilling of the beer is usually achieved with ice chambers or with freezable ice packs; these are traditionally located internally, but may be external for increased hygiene when handling.
There was also a variant with lager beer barrels that stood upright, allowing gravity to force the beer out the tap, which is the principle of the modern day system.
The beer tower is popular in bars and clubs throughout Thailand, Malaysia, Singapore, and the Philippines.
The officials required licensed alcohol serving businesses to request permission to use these beverage dispensers.