Genuine replacement part</br>Perfect fit every time</br>Shipped from the U.S.A.</br>KO.GP1078440 is Kohler part number</br>Kohler Genuine Part</br>Used in various one piece toilets</br>Adjustable chain length</br></br>Product Description</br></br>Kohler Genuine Part?? Toilet Flapper?? Used in various one piece toilets.</br><br/>http://www.amazon.com/gp/product/B001GZUMTC