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. Flange connections are available to connect the circulator pump to the piping loop, with an optional integrated mesh y-strainer that filters out debris before it can reach the pump. 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.