After having some hose to barb sealing issues, I took the cover off my machine to change the gas inlet barb on the gas solenoid to a flare style that is interchangable with my other welders (Miller). I tried unscrewing the barb from the solenoid but it is completely stuck. It's so tight I didn't dare to try any harder for fear of it breaking.

Can an everlast employee let me know how I can get a new gas solenoid valve (without a barb installed if possible/easier)?