I am looking for a wye fitting for a duct. It needs to have 2, 10" round ducts(each at 45 degrees) into it and 1, 18" coming out. I am wondering where in Bristish Columbia I could find this?
Ditto to what airdata870 said - I'm in BC and fittings like that can be made up by pretty well any commercial HVAC sheet metal shop. Try the folks at Ecco Heating Industries - they may even have off the shelf fittings to suit,