ericoseveins

I was recently gifted a Hozan C-440 which is missing the plastic collar below. Emailed Hozan to request a replacement or get dimensions but haven't heard back from them to date. Rather than do measurements and math of my own, I was wondering if any owners of the C-440 might be able to tell me the dimensions of the part (height, inner and outer diameters)? Appreciation in advance for any help.