I had the same trouble with yhe VM I used the contact page on the website on a weekend & I got an answer back in about 1hr. I looked back on my emails & the email address was
info@ezoil.com.au. The blokes name was Jack & he was very helpful. The valve is great it has a small spring leaded lever that locks in so it can't accidentally open & it comes with an oring to seal it on to the sump.
The one for the VM was EZì-106
Sent from my SM-G925I using Tapatalk