AC variable frequency drives that are used to control small and medium-sized motors in applications such as manufacturing processes, HVAC and pumps; Automated hydro-thrust cleaning units for pipelines; Automatic swimming pool cleaners and parts therefor; Central vacuum cleaning installations; Electric pumps for swimming pool, aquarium; Electric vacuum cleaners; Electrical water pumps for swimming pools, spas, baths, and whirlpools; Fitted covers for swimming pool vacuum cleaners; Hand-held va...