Model of SPM 3/8 is stainless steel 316 bulkhead union straight push in fittings with which hose push-in connectors at both ends is 3/8 inch, designed to connect two 3/8 inch O.D pneumatic tubes through a panel or other barrier and fixed by two bulkheads. All bodies are making using of high grade 316 stainless steel, which offers high corrosion and chemical resistance, commonly used in food, beverage, chemical, medical and pharmaceutical systems.