lighting cost Videos

  • INTEWA PURAIN Filters- Video

    Unlike other self-cleaning filters the INTEWA PURAIN filter allows the filtration of light rainfall of with 100% efficient collection. As 97% of annual rainfall is mainly light rain, the overall efficiency is 98%. Heavy rainfall that contributes approximately 3% to the water yield, activates the self cleaning function and the high energy from the resulting hydraulic jump is the optimal and ...

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