Devices and methods for cooling microwave antennae and microwave hub construction are disclosed herein. The cooling system and hub can be utilized with a variety of microwave antenna types. A microwave hub is utilized to provide cooling fluids to a microwave antenna. The hub is constructed using no glue or adhesive for holding the different parts of the champers in place. O-rings provide an increased reliability and consistency for fluid-tight seals in the hub. The various parts of the hub are form fitted and work together with the o-rings.