Besides connecting pipes and tubes the fittings also direct and stop the flow of fluids (solids, gases, and liquids). You can purchase premium quality Stainless steel fittings from a certified SS product manufacturer. You should ensure that the products are made with 304, 304L, 316, and 316L grade steel. These grades refer to austenitic SS, which is non-magnetic, corrosion resistant, ... https://pdfhost.io/v/sxb67LkZj4_Know_How_to_Buy_High_Quality_Stainless_Steel_Fittings