With the Pumpin Gum Ball, changing liquid is no longer a problem. This little helper removes the majority of old liquid remnants out of a system. The Pumpin Gum Ball creates pressure in the system and removes the drops from every corner through a constant pumping. One side has a ¼” internal screw thread. The Pumpin Gum Ball can be connected by removing a connection at any point in the system, splitting the circulation. Anyone using a fillport has it even easier, and can simply connect the ball there. Technical Specifications: Material: rubber, brass Screw thread: 1x ¼” Colour: black Scope of Delivery: 1x Alphacool Pumpin Gum Ball Note: To empty your system completely as possible, it is important that you pump slowly and steadily but surely. Too rapid and vigorous pump may have an adverse effect.