The 400CARP PerforMAX® No tank removal kit fixes most common toilet problems while reducing repair time by 30 min. It features the PerforMAX® toilet fill valve which is the quietest and most powerful solution to fix and upgrade your toilet. Also featured is the PerforMAX® 2 in flush valve repair kit that fixes common flush valve problems while giving the user the capability to optimize toilet performance while saving water and money. This kit works with all 2 in toilets including Kohler®, Toto® and American Standard® and more. This kit is not designed for 3 in flush valve toilets.