Streamline the installation of a water cooling system with a Danger Den Fillport. The aluminum fillport is bright dip anodized. The cap is cadnium coated and a wrench is included. Easy Installation: * Cut a 1" (2.54cm) hole in the top or side of the case. * Slide in the Fillport * Secure nut on the underside of the Fillport. * Connect tubing to the Tee or Reservoir