Water Saving Adjustable Select Toilet Flapper - 2 Inch Adjustable Water Saving Dial controls flush volume, saving you up to 54% in water, per flush 2-way mounting for brass and plastic 2" flush valves Toilet flapper is highly resistant to harsh and chlorinated water Fits most toilets including: American Standard, Kohler, Glacier Bay, Mansfield and many more Easy to install, includes Limited 5 Year Warranty