I think so., 5/8” is a standard radiator hose size. Check the size of the hose that came with it.
Here’s one on amazon.
Dayco 80402 90-Degree 5/8” Diameter Molded Coolant/Heater Hose with 18” Total Length
The other thing I did was to seal up the air tubing on both ends where it meets the ducts in the dash and on the heater itself. I used the aluminum high temp foul for chimneys because I had a big roll left over, and the stuff sticks great. Duct tape would also work.
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