Of course, it is better to buy 304 stainless steel.
If the air conditioner is installed in the outdoor high altitude, it is necessary to buy 304 stainless steel bracket.
The service life of stainless steel air conditioning bracket is about 10 to 15 years. Once installed, many families take the initiative to check and replace the bracket, and the use of 304 stainless steel brackets is relatively more worrying and guaranteed.