Zone pump kits are designed to sit vertically on the header unit and have a fully insulated compact black cover which house the circulating pump and valves.
Two zone pump kit sizes are available for each of Grant's Low-Loss Headers. For the 70kW header, the sizes available are either a 6m pump or 8m pump. Meanwhile, for the 165kW header, either a 7m pump or 8m pump is available. Each of these also come in either a constant temperature/variable speed option or a variable temperature/variable speed option.