A simple but effective port for easy filling of a water loop. The flat design makes it unobtrusive, so it fits in with most cases and blends into the overall look without being disruptive. The included stop plug screws in almost all the way, so it closes almost flush. Therefore, you get a port with the Alphacool Apex Fillport that doesn't protrude and looks like it belongs to the case instead of being retrofitted. Material: The fillport and the included nut are made of solid brass, making them very sturdy. The color coating is durable and firmly bonded to the surface, preventing scratches or chipping. Mounting: To mount, drill a 20mm diameter hole anywhere in the case. The fillport is inserted and screwed tightly and securely with the enclosed nut. Please note that the fillport should be the highest point in the water cooling system. Compatibility: G1/4" Connections Technical Details: L x W x H: 42 x 30 x 15 mm Material: brass Weight: 51g Color: black Connection: G1/4" IT Thread for case mounting: M20 Model: 13466