Why do air conditioner installers like to recommend stainless steel brackets?

Most of the air conditioner outdoor units are hung on the outer wall or placed directly on the balcony. When the external unit of the air conditioner is hung on the outer wall, it is necessary to play the role of fixing the air conditioner bracket. Everyone has heard about the news that the external unit of the air conditioner has fallen off. Therefore, when choosing an air-conditioning bracket, the stability of the material must be considered.
The rusty iron bracket of the external unit is like a time bomb. There are many kinds of air conditioner bracket materials. The common ones on the market are ordinary angle steel and galvanized sheets with high rust resistance.
5~7 years for ordinary angle steel brackets; 7~10 years for galvanized sheet brackets.
As we all know, stainless steel is resistant to air, steam, corrosion and rust, so it can resist wind and rain, durable and safe. The service life of the stainless steel air conditioner bracket is about 10 to 15 years longer than that of ordinary angle steel and galvanized sheet.
but! Common stainless steel materials on the market mainly include 201 stainless steel, 304 stainless steel, and 316 stainless steel.
Corrosion resistance: 316>304>201;
The price is also: 316>304>201
304 is sufficient for northern and western regions, and 316 is recommended for southern regions.