Apparatus and instruments for monitoring, measuring and checking (supervision); apparatus and instruments for condition monitoring; apparatus and instruments for monitoring fluid; apparatus and instruments for magnetic filtration; testing apparatus and instruments; water testing apparatus and instruments; water monitoring apparatus and instruments; apparatus and instruments for testing and monitoring water in central heating systems, cooling systems, boilers, heaters, radiators, pumps and pipes; apparatus and instruments for monitoring and testing central heating systems, cooling systems, boilers, heaters, radiators, pumps and pipes; apparatus and instruments for monitoring and testing the efficiency, performance and consumption of central heating systems, cooling systems, boilers, heaters, radiators, pumps and pipes; apparatus and instruments for monitoring and testing heating, ventilating, air conditioning or water supply apparatus, systems, devices and installations; apparatus and instruments for monitoring and testing the efficiency, performance and consumption of heating, ventilating, air conditioning or water supply apparatus, systems, devices and installations; checking, monitoring and controlling apparatus for heating, ventilating, air conditioning or water supply apparatus, systems, devices and installations; checking, monitoring and controlling apparatus for central heating systems, cooling systems, boilers, heaters, radiators, pumps and pipes; apparatus, equipment and instruments for measuring the efficiency, performance and consumption of heating apparatus, systems, devices and installations; electrolysers [electrolytic cells] for apparatus and installations for heating and water supply; electrolysers [electrolytic cells] for central heating apparatus and installations; electrolysers [electrolytic cells] for apparatus and installations for heating, central heating, water storage, water supply and cooling; electrolysers [electrolytic cells] being for use in central heating systems; parts and fittings for all of the aforesaid goods

Apparatus and installations for heating and water supply; central heating apparatus and installations; filters being parts of central heating apparatus and installations; filters being for use in central heating systems; water filtration apparatus and installations; water filtration apparatus and installations for heating, central heating, water storage, water supply and cooling; water filtration apparatus and installations for central heating apparatus and installations; water treatment apparatus and installations; water treatment apparatus and installations to prevent the accumulation of sediment or limescale; scale reduction apparatus and installations; scale reduction apparatus and installations for heating, central heating, water storage, water supply and cooling systems; electrolytic scale reduction apparatus and installations; scale reducers; water conditioning apparatus and installations; water conditioning apparatus and installations to prevent the accumulation of sediment or limescale; electrostatic filters for water filtration; water treatment apparatus for water purification and water softening; water treatment apparatus for water purification and water softening for central heating apparatus and installations; water treatment filters; portable filtration units (other than machines); parts and fittings for all of the aforesaid goods