HELLLP!! Lamosa “Sahara” toilet-cant find tank-toilet seal that fits

[valhopkins]

I’m supposed to repair the leak on my neighbor’s toilet and the standard 2” tank to toilet seal is too BIG-there’s a gap around the plastic nut(?) that is screwed into the bottom of the tank. The old seal is a soft pink rubber type, not the black hard rubber like the new ones. I cant find a replacement online anywhere. The toilet was made in 2007.

 

[Sylvan]

Shame you did not include the brand of toilet

 

[Sponsor]

 

[Terry]

Lamosa is a brand.

It should have a very standard tank to bowl seal. Have you tried the Fluidmaster seal?