NAVISHIELD

Magnetic water filters for heating boilers, industrial boilers and electrical boilers; heating boilers for household purposes; air filters being air filtering installations specially adapted for household and commercial air purifiers; air filters for industrial installations; heating systems composed primarily of tubes, pipes and manifolds through which warm or high temperature water circulates; water heater pipes for water supply being pipes for heating boilers; heating elements, namely, film-type heating filters for household and commercial HVAC systems