I didn't buy a Modine, but I needed the same fitting for my shop heater.
Bought mine off the shelf from Menards.
HD should have them too I'd imagine.

Good luck to you.


"x071907" wrote in message
om...
Does anyone know which Selkirk Metalbestos adapter I need to
transition a Modine Hot Dog heater with a 3" appliance exhaust to 5"
type B (gas) round double wall pipe? I purchased their 3" x 5"
increaser and it's actually 3 ½" in diameter.