This is the one I used: https://www.silverlinetools.com/en-GB/Product/ProductDetail?ModelName=271414

It's a bit flimsy, however it worked for me but my filter was pretty loose anyway.

I might try a cup type tool next time: https://catalog.mann-filter.com/EU/eng/catalog/MANN-FILTER Katalog Europa/Wrench-removal tool/LS 6~1

I've had success with a "hand making a C" type of vise grips. It's thin enough to fit around the filter, in the quite small space there is on the GP:

Feel free to add permanent pic links

I own several styles of chain.etc wrench.. but they been shut in a drawer for years.. as the SP ones ' just work'
Slim..strong..adaptable

https://i1.adis.ws/i/washford/926527?$quickview$

Not sure where my full reply went..


I own 2 sizes of this

https://www.google.co.uk/search?q=s...oECA0QAg&biw=360&bih=520#imgrc=K5L-HoBMFZxBXM