Park ToolTSI-1 - Tubeless Sealant Injector, One Size, Blue

Excellent sturdy

As usual with their standard, excellent quality and usability.

Finally something that makes filling tubeless tyres easier and no more mess.

Works beautifully and feels very robust as you'd expect from Park Tool, easy to clean too.

Easily passes through my presta valves with the cores removed. Drew out the old sealant easily. Dead easy to take apart and clean, ready for next time.It has a good sized tube with clear volume markers so it's easy to get the right amount of sealant.Now the downsides; first, it's not cheap. But it's quality and quality costs. Second, the proboscis could have done with an inline tap which would allow you to remove the plunger and pour sealant in from a bottle, rather than sucking it up, as it's not long enough to reach the bottom of the bottle of Stan's sealant I have.That said, you can't really go wrong with Park Tool. Quality stuff.

Utter rubbish, you cant pump the solution out before it seals and blocks the pipe and syringe, after several attempts and unable to get any fluid out it got thrown across the garage !!

Yes it is well made and yes it clearly states that the thin clear plastic tube will pass thru most removable valve cores. However, I have three sets of wheels with probably the most common valve cores on the market, namely Mavic, Shimano and Stans, all of which have removable valve cores, but none of them will allow the thin plastic tube to pass all the way through them!Needless to say it will now have to be returned as the whole purpose was to save removing the side wall of the tyre in order to add sealant.

Opened a few months after buying it and there was a missing part. Contacted park tools and nothing back from them. Disappointed as I've been buying from them for years.