AquaLifter 20 Aquarium Vacuum Pump HG level

I bought an aqua lifter for use in my aquarium. Thought I would measure the vacuum level and post what I got for vacuum… Looks to be about 3” hg when going by my hand pumps gauge. I’ll get out my water lift tube and get an accurate measurement. Just for reference the much cheaper,faster and more powerful whisper aquarium air pumps usually go to 5” or a bit higher.