A stainless steel sanitary reducer fitting is a fitting used to increase or decrease the diameter of a sanitary pipeline.The primary purpose of a reducer fitting is to connect tubing of different sizes. It allows for a smooth transition between pipes with varying diameters. Types of Reducer Fittings include : Concentric Reducer: This type has a gradual reduction in diameter, maintaining a straight centerline. Eccentric Reducer: Here, the reduction is off-center, resulting in an uneven transition.These fittings are typically made from 304 or 316L stainless steel, which is resistant to corrosion and can withstand high temperatures.