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please email us at customerservice@uswatersystems
Not only are they made in the USA
Watts WPC1FF20
25 x 1 inches)
American Plumber
HM Digital TDS 1000 ppm NaCl Calibration Solution Toxins please email us at customerservice@uswatersystemsFor optimal performance, re calibrate your meters periodically or if testing TDS or conductivity levels in wide or different ranges. FEATURES NaCl calibration solution, available in 342 ppm or 1000 ppm. Comes in lightweight HDPE plastic bottles. Sealed with a coated foam liner. SPECIFICATIONS NaCl solution Available in 342 ppm or 1000 ppm 3 oz. bottles (88. 7 ml) Solution Conversions 342 NaCl = 362 as KCl ; 478 as "442" ; 700 S 1000 NaCl = 1060 as KCl
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