Stoner Dictionary | Percolator
Percolator: noun 1. a small chamber attached to the shaft of a water pipe that produces inline smoke and water integration through heat exchange
Example: “Joe just bought a bong with two percolators!”
Mankind is known to be pretty crafty when coming up with creative smoking devices and the percolator is one of these. Most people are in favor of having a percolator for their bong because they say it results in a cooler, smoother, smoke and an all-around more efficient way to get high. Most average priced bongs do not come with percolators but save this design for those with a more expensive taste.
Like they say, if you want a quality high, you have to pay for it.