Believe it fits the earlier valves where you have to unscrew the valve body to access the diaphragm,,Armitage Shanks Ideal Standard Valves
If you have the Armitage Shanks Ideal Standard Univalve QT Cistern Inlet Fill valve( 1/4 turn fitting ) you will need one of these
"Armitage Shanks Ideal Standard Univalve QT Cistern Inlet Fill valve Diaphragm"
for some reason Screwfix don't seem to sell them.
Answered by: Iain2017
Date published: 2020-09-28