This Repair Kit for VB9 Unloader Valve is designed to extend the life of the valve by replacing worn or damaged components. The kit includes all the necessary parts needed for a complete repair, making it an ideal solution for any maintenance or repair needs.
It's a product I use a lot would recommend it.
Best foam gun by far , and easy to change the foam pad inside
Best foam bottle's by far
And easy to replace the foam pad inside
Just make sure get the correct nozzle to suit your machine flow rate