A.R. Hydraulic Fittings Pvt. Ltd. Supplies Equal Union Double Ferrule Tube Fitting. A.R. Hydraulic Fittings Pvt. Ltd. Is an ISO 9001:2000 accredited company. A.R. Hydraulic Fittings Pvt. Ltd. Manufactures precision engineered components and equipment such as pipe fittings, hose fittings, steel pipe fittings, stainless steel pipe fittings, industrial pipe fittings, etc. Which is used widely in mechanical and engineering industries. Equal Union Double Ferrule Tube Fitting is available with fraction tube ranging from 1/8 inches Tube OD to 1 inch Tube OD. Equal Union Double Ferrule Tube Fitting is also provided with metric tube sizes ranging from 3mm Tube OD to 25mm Tube OD.