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. The complete near boiler piping kits are fully-fabricated solutions that are catered to the needs of their chosen boiler. Using the Webstone boiler compatibility matrix, the installer is provided with the NBP kit part number that's unique to their boiler model, with pre-cut supply and return lines and boiler-specific connections. 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.