Engineered for smooth fit with tanks flush adapter and 400A / 747 systems, these seals easy installation and dependable leak Crafted from strong rubber, these seals effectively water waste, reduce noise, and maintain optimal water levels in toilet tanks for stable, long lasting This 10 piece set provides premium toilet fill adapter seals suitable for 83143 and 200 / 242 / 400 / 747 models, designed to stop leaks instantly and save up to 10, 000 gallons of water annually per household Ideal for homeowners and enthusiasts seeking multiple replacements or backups to cut costs on frequent repairs without replacing entire fill adapter Perfect for fixing leaks in residential toilet tanks, ensuring a quiet, efficient bathroom environment and promoting water conservation in everyday use, Manufacturer: Ywmsfl