How are you guys attaching your ABG to your metal pipe? Are you pre-drilling the cast aluminum and screwing the pipe to it? Or just using clamps and sealing with tape and or duct seal? Or how?
I got my entire metal duct installed and only have the blast gates and hose to attach. I currently have the two wire type band clamps to attach the hose to the pipe and gates. But the gate to the metal pipe is where I am not sure of.
Thanks Richard