Crafted from durability rubber , these seals are specifically designed for 83143 and Fluidmasters 200 / 242 / 400 / 747 models , ensuring leak , noise reduction , and proper water levels maintenance without replacing the entire fill adapter Use these seals to quickly fix toilet tanks leaks in residential bathrooms , restoring functionality and water conservation with minimal effort during routine repairs Ideal for homeowners and enthusiasts who need reliability backups for frequent toilet maintenance , this set convenience and efficiency for everyday plumbing upkeeps This 6 piece premium toilet fill adapter seals set provides a cost effective solution for multiple repairs or household backups , leaks and saving up to 10 , 000 gallons of water annually per homes Enjoy seamless compatibility and simple installation with these good rubber seals , enhancing your plumbing systems longevity and for year to come, Manufacturer: JDNH