mod wah trimpots

[Kirk A]

I recently got a mod-wah PCB from the JD's brand new batch, but I must confess some confusion for this project which is my first such project. Trimpots come in a verity of physical sizes and pin configurations/types. This board was designed for a specific type (small triangular pin layout with wire pins, not blades), but I don't know how to identify that in order to purchase the correct parts. (I don't have a decent local electronics store to identify or test-fit parts.) If you have built this mod-wah PCB, please tell me what I need to know to specify the proper physical trimpot size/type. (The electrical values are understood.)