The Top Mounting Bracket for unheated air curtains is for use with a 5/16" threaded rod. The mounting brackets come in a set of 2. Air curtains that are greater than 72" require 2 sets (4 brackets). These include the LoPro 2 (LPV2) and Phantom (PH10 and PH12) units from 84" - 144" long.
Mounting brackets are available in both Obsidian Black (09-056-OB) and Peal White (09-056-PW) to match your air curtain.