I don't have any details on the T5 ones but I do have pics and part numbers of the T6 ones, there are two different types, a standard white one for normal vans and a black one for vans with LED headlights/headlight wash that has a slightly larger capacity, integral fluid level sensor and an additional outlet hole for the headlight washer motor
I have a standard white one second hand if your interested as I changed mine for the larger one ?