u/Intelligent_Bag_4169

Hey, so I have been doing some work on my car, and realized I had a vacuum hose that was brittle and old and breaking so I replaced it with a braided hose from Canadian tire. however, this hose was not strong enough to deal with the vacuum suction and eventually collapsed under the pressure. I am wondering what the ID is for it because I cannot find this anywhere. in the picture I have attached, It runs from the long hose that goes under the air intake and goes downward just in front firewall I believe. If more pictures are necessary, just let me know. Thanks!