The new EZABL PRO from TH3D is fantastic, however I had trouble mounting it to the correct height above my build plate. I have a Bullseye duct and EZABL (old style) mount. This combination made it very difficult to lower the EZABL PRO to the approximate 2mm above the nozzle height and still have access to the measurement sensitivity screw. I hope this new mount helps you with both of these issues. This mount is for the 18mm EZABL PRO. Happy printing!
To reiterate @dpetsel's instructions: "Print with 4+ walls with 50%+ infill. These are structural parts and need to be strong, especially the mounting points."
The PETSFANG duct is constantly updated. If you want the latest PETSFANG/BullsEye then download the latest from https://www.thingiverse.com/thing:2759439