I have lost connection piece to attach hose to the T. Is it possible to use flexible hose on an old cub cadet to replace the hard hose chute

Are you asking about the connection for a grass catcher? Not sure what you are referencing about a "T." Give us a call at 865-970-2473 and we can try to help you out.

Yes as long as the temperature doesn't surpass the rated temp for the hose and the pressure doesn't surpass the rating for the hose

As long as it is rigid enough as to not collapse or burst under pressure.

Have no clue but guess probably