The Parker Ermeto DIN tube to tube high pressure hydraulic tube fittings function is to connect different numbers of tubes. This broad range of fittings is available in steel and in stainless steel. The material of construction of this product is steel. Connection 1 type is 24° cone end with tube outside diameter 6 mm and connection 2 is 24° cone end with 6 mm tube outside diameter.Material of construction of this product is steelConnection 1 type is 24° cone end with tube outside diameter 6 mmConnection 2 is 24° cone end with 6 mm tube outside diameter