A Hydraulic Block Tube with internal channels or passages that allow the hydraulic fluid to travel from one location to another within the rotator upper housing. It is made from strong and durable material such as steel and secures the rotating mechanism, allowing it to rotate smoothly and effectively.Attributes:• Offers good resistance against wear and tear• Helps to maintain the stability and alignment of the swivel assembly, during rotational movementApplications:A Hydraulic Block Tube provides a reliable and efficient means of enabling rotational movement in the swivel by supplying the fluid flow.