If you've got a running toilet that's wasting water and driving up your bills, this Plumb Pak flapper is probably exactly what you need! It's designed to fit most standard 3-inch flush valves, so it should work with your toilet setup. The chemical-resistant vinyl construction means it won't break down from those toilet bowl cleaners or other chemicals, so it lasts much longer than cheap flappers. Installation is seriously easy - no tools required! You just attach the flapper body to the flush valve and hook the metal chain onto the tank lever arm. The whole process takes maybe five minutes, and you'll stop that annoying constant running sound immediately. It comes with everything you need - the flapper itself plus a metal chain and hook that are built to last. I've used these in several bathrooms around my house, and they've fixed leaking toilets every time. The tight seal prevents water from slowly leaking into the bowl between flushes, which can waste hundreds of gallons of water each month. For the price, it's way cheaper than calling a plumber, and it's such a simple fix that anyone can do it. Keep one of these on hand for whenever you notice your toilet running longer than it should - it'll save you money on your water bill and prevent that annoying sound from keeping you up at night. Seriously, one of the most satisfying quick fixes you can do around the house!