ULTRA PURE WATER 18 MOHMS ULTRA PURE WATER 18 MOHMS, HIGHLY MICROFILTERED AND PURIFIED, F.U., IN COMPLIANCE WITH ISO3696 STANDARDS • ULTRA PURE WATER 18 MOHMS ULTRA PURE WATER 18 MOHMS, HIGHLY MICROFILTERED AND PURIFIED, F.U., IN COMPLIANCE WITH ISO3696 STANDARDS