Plumb Pak, Green Grey K835-9 Adjustable High Performance Toilet Flush Valve with 3 in Flapper, 2 in Inlet, Plastic, Gray, Size

HIGH PERFORMANCE TOILET FLUSH VALVE: Improves flushing power by up to 40% while reducing water usage to turn any toilet into a high performance toilet, INCREASES FLUSHING POWER: Patent-pending funneling action accelerates water flow into a standard 2 in. outlet to create a vortex and increase the power of every flush, 3" WATER-SAVING FLAPPER: Oversized 3" flapper allows the user to control water usage for enhanced performance or for water conservation by simply rotating the timing cone, ADJUSTABLE OVERFLOW TUBE: No-cut overflow tube adjusts from 8.5" to 13" height to accommodate various tank heights for a universal fit in most standard toilets, ECO-FRIENDLY: Saves up to 2,500 gallons of water annually - install in just one toilet or purchase multiple to install in every toilet around your home for additional water savings