Designed for both ABS and PVC rough-ins, the AB&A Classic Waste and Overflow Trim Kit makes it easy to change or refresh your existing bathtub strainers and overflow plates. This tub drainage kit includes a high-flow-capacity overflow plate that is slotted to provide greater drainage through the tub overflow, draining water at a rate of 7 GPM (gallons per minute) compared to the output of a typical tub spout of 5-6 GPM. The Push eN Lift Stopper allows for easy plugging and unplugging of the tub drain. Designed for quick, tool-free installation, this waste and overflow trim kit features a convenient push-on overflow cover plate that secures to the overflow elbow with a simple push for a snug fit against the tub wall. An additional thin gasket is included for thick-walled tubs made of material such as marble.