Hello,
I have a syringe with a 1/2 litre capacity that I purchased from my local DIY store here in France. I have been using it for 18 months now and the seals are still as tight as they were when I purchased it. Replacement seals are available if they should go, but as yet I have not found the need. Cleaning after every use is the way to go. I have been using it for deisel, EP90, and ATF plus the odd use of Engine oil. It will suck out or put in (if you get my drift.) I have found it the most clean and useful way to replace all oils in my vehicles. It is about 14 ins long with a 12in flexible tube on. The price was 28,00euros.
If anyone is interested in one of these very useful tools PM me and for the cost of postage to the UK I am sure we could arrange something.
Regards
Philip