The Ventinox Swivel Tee Adapter makes tee snout connection through a thimble easy! Just attach the adapter to the tee body. When the liner is lowered down the flue you can then reach into the thimble and turn just the tee body to line up the snout. Otherwise, you may have to rotate the entire liner.
6″ Swivel Tee Adapter (316140) $52.99