Stainless steel compression fitting union elbow connects two tubes on both ends at an 90-degree angle with same diameter. Stainless steel compression fitting union elbow is made of 316 stainless steel for resistance to scaling and corrosion, Stainless steel compression fitting has a double ferrule construction to reduce the possibility of leakage. Stainless steel compression tube fitting is suitable for use in high-pressure and high-temperature applications. Stainless steel compression tube fitting are compatible with stainless steel, carbon steel, copper, rigid and semi-rigid plastic tube. Accommodate metric tube O.D ranging from 4 mm to 16 mm and inch (imperial) tube O.D from 1/8" to 1/2".