Technical help needed to solve a leak

[jpuk]

this is loose i push it in but it comes loose and leaks does anyone have a link to where i can get a new one or a part number please,John

 

[Greasytrucker]

this is loose i push it in but it comes loose and leaks does anyone have a link to where i can get a new one or a part number please,JohnView attachment 448738

Plenty on here if you do a bit of trawling, lots of people seem to have leakage problems with those sort of filters so you’re not alone!