Hydro-Core is the ideal solution for near boiler piping or secondary loops. By combining the Webstone Isolator and Ball Drain with closely spaced tees, the Hydro-Core Manifold system eliminates costly field fabrication, avoids precise calculations and simplifies future service. Unions allow quick and easy connections and disconnections between the Hydro-Core manifold and fixed piping, with a choice of end connections for the installer''''s preferred joinery methods. For installations with unique requirements, unions with reducing sizes or appliance ports can be selected that cater to the desired application. Designed for use with water, oil, glycol mix in residential or commercial heating systems. Refer to specification sheets for additional technical information. All Webstone products are backed by a limited lifetime warranty.