This is the 1mt hose that currently comes with the T40i
http://www.showerdoc.com/shower-spares/triton/TRITO-28100240-Triton-Flexible-Hose-1m-(chrome)-28100240
Any of the Triton hoses will fit it is just down to you to choose the length you want as I recollect the T80 came with a 1.25m long hose.
http://www.showerdoc.com/shower-accessories/shower-hoses/triton
And this is the current Triton universal head http://shower-warehouse.com/shower-accessories/shower-heads/triton/TRITO-88500035-Triton-Head-7000-Wht-(universal)-88500035