Measure the diameter of the hole at the bottom of the water holding tank. It’s the main difference between older and newer toilets in the US.
Any US toilet repair kit should list what diameter(s) it supports.
Depth of the holding tank will vary as well, but most repair kits account for this. Some kits may require using a hand saw to cut some plastic tubes to fit smaller tanks. Other kits have an extendable or collapsible tube.
They are not all the same.
Measure the diameter of the hole at the bottom of the water holding tank. It’s the main difference between older and newer toilets in the US.
Any US toilet repair kit should list what diameter(s) it supports.
Depth of the holding tank will vary as well, but most repair kits account for this. Some kits may require using a hand saw to cut some plastic tubes to fit smaller tanks. Other kits have an extendable or collapsible tube.