Manifolds are available in a variety of materials depending on the usage. The most common materials of construction are: Carbon Steel ASTM A 105 Stainless Steel ASTM A 479/A182 F 304, F316, F304L and F316L, F321 Cupro Nickel: Monel Inconel Hastelloy “C" Titanium The choice of the materials is based on the workings of Fluid Controls and the installation location where atmospheric conditions may vary and require materials to prevent corrosion and withstand vibration. The available sizes are from ¼" to 2".