Under normal circumstances they should. All tanks made for fire protection are required to meet NFPA (National Fire Protection Association). There are some civilian and military agencies that may not be covered by NFPA but they still have to meet OSHA and other federal standards, but they can have different valves. Most tanks are made by two companies either Luxfer or SCI (Structural Composite Industries). Scott and other tank companies contracts these companies to make their tanks so more than likely they will have the same valves and a standard CGA347 adapter will fit it and connect to your fill assembly..