The Korky 2X long life universal complete kit is the longest-lasting, most universal repair kit for 2 in toilets. The proprietary Chlorazone II rubber formulation lasts 2X longer and is backed by a 10 year warranty to hold up in the harshest environments. The complete kit allows for a full overhaul of your toilet in just one trip and is designed to fix no-refill, slow-refilling, running and noisy toilets.