VORTISAND

[Class - 11]

Centrifugal sand filtering system for use in cooling/heating water systems, potable water systems, waste water systems, swimming pool systems, aquariums, water slides and aquacultures, pretreatment for reverse osmosis or demineralization, comprising sand filters, tanks, valves, piping and pipe connectors, filtering media, pumps, controls, 5 microns prefilter, pressure distributors, sequencers, pressure guages, pressure sensors, differential pressure sensors, time delay relays, programmable controllers, electrical equipment cases, and terminal levelling supports, sold as a unit.

[Class - 37]

Maintenance and repair of sand filters and related components and accessories, comprising sand filters, tanks, valves, piping and pipe connectors, filtering media, pumps, controls, 5 microns prefilter, pressure distributors, sequencers, pressure gauges, pressure sensors, differential pressure sensors, time delay relays, programmable controllers, electrical equipment cases and terminal levelling supports; operation of a business engaged in the maintenance and repair of sand filters and other related products; operation of a business engaged in the leasing of sand filters.