I need to replace a strip of flex duct. It says its 11in, its old and I dont see where they even make 11in anymore. I bought some 12in. Will the 12in mount on the existing plenum fitting that the 11in was mounted to?
That’s interesting, I’ve been doing HVAC work quite a while and never seen an 11” flex duct. It’s not going to hook up very well on either end of you try to use a 12. Buy a 12” start collar and replace the 11” on the plenum
Comment