Is GREE a brass tube or an aluminum tube?
What flows inside is a refrigerant. It must be a copper tube!
Air conditioning heat exchange tube is the use of pure copper is not soft aluminum tubes could not resist exposure and alternating hot and cold days and months multiplying each business even in order to reduce the cost is not used because of the short service life of aluminum tubes and easy deformation of the head down business costs high maintenance rate is lost in their own businesses after all is said and done. Copper is only copper content more with less
What flows inside is a refrigerant. It must be a copper tube!
