The traditional trip lever – The lever on the faceplate moves up and down, and is connected to internal linkage attached to a barrel. When the lever is lifted up, the barrel drops down and blocks the flow of water out of the tub drain. The center of the barrel is hollow; this allows overflow water to pass through the barrel and into the drain pipes. Any water passing through the overflow when the barrel is in the closed position, will flow through the barrel and into the drain pipes.
The Uni-Lift Stopper – The stopper is lifted manually upwards with a slight twist to allow water to drain from the tub. With a small twist and a push down, the stopper will stop water from draining out of the tub.
The Toe-Touch – When you push down in the center of the stopper, it will close and not allow water to drain out of the tub. When you push down off center, the stopper will pop up and the water will drain out of the tub.
The Cable Drive – a concealed cable is connected to the bath shoe and overflow tube. When you turn the overflow plate, the stopper will be moved up and down.