The Grant Standard Controller Kit Pack is an essential component for managing your air-to-air heat pump system, This kit ensures that your heat pump operates at an optimal efficiency, providing a consistent and reliable source of warmth to your property. With a power source that utilises heat from the atmosphere, this controller kit operates with a standard sound rating, ensuring a quiet and comfortable living environment. Installation is made straightforward, allowing for a quick setup and start of your heating system. contains 2 x 1" x28mm x 500mm angled Flexi hoses. 2x 28mm black lever valves 2x 28mm red butterfly valves 2 X 28mm brass female to make connectors.