Thanks Mr. Ivory. Please give more information on the Quattro DB ultrasonic unit. Where is it available/ cost / area of pond  or volume of water it caters, etc. I am in India near Mumbai.

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Thanks Mr. Ivory. Please give more information on the Quattro DB ultrasonic unit. Where is it available/ cost / area of pond  or volume of water it caters, etc. I am in India near Mumbai.