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WHEERM has been certified and tested against NSF/ANSI standard 58 for the reduction of total dissolved solids and organic matter
The PCF1-20MB is manufactured using an FDA-compliant resin that minimizes the total organic carbon (TOC) level and the Total Dissolved Solids (TDS) level
it is reasonable to specify at least MERV 11 filters to maintain good indoor air quality in common types of spaces
and Aprilaire 568 Humidifier
18x30x1 MERV 13 Air Filter - Box of 6
Hanna HI98127 4 pHEP Digital pH and Temperature 0-14pH Waterproof ATC Pocket pH Tester UV Bulbs WHEERM has been certified andThe Hanna HI98127 pHep4 lightweight and sleek tester is accurate to 0. 1 pH with a built in thermometer to automatically adjust the pH reading for temperature. The waterproof design (it floats), simple operation, and replaceable electrode mean that you can rely on this meter for years. The large LCD display shows both pH and temperature readings simultaneously, while a stability indicator is displayed to alert you when a stable reading has been
US$ 156.00
US$ 191.50
US$ 172.00
