The Adjustable 2" Flush Valve and Premium Flapper Kit is universal to fit all 2-piece toilet tank brands. Quick and easy to install, the flush valve height easily adjusts from 7" to 11-1/2", with no tools or hack sawing required. The oversized tube and funnel reduce flood risk while the included premium flapper ensures a tight, leak-proof seal. The included premium flapper is constructed of exclusive longest lasting red rubber that resists chlorine, bacteria, city water treatment, hard water, and well water. Easy to install.