A Buford T Justice would say,,
"Boy, YOU in a HEAP 'O" trouble!!
I did not find that hose,, either,
but, you could take the hose you have to an auto parts store, and match up a radiator hose that is similar.
That has been done MANY times,,
Also, various silicone hoses are sold at a VERY low cost on eBay,, buy a couple that are similar and make it fit.
Clamp 2 or 3 together with steel tube as connectors, and you will have your hose.
OH, Yea,, Welcome to TBN!!