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Merv 13 FiltersFast 1" Allergy AC and Furnace Filters 6-Pack
True HEPA Allergy Relief Desktop & Small Room Air Purifier
Comfortable, Reusable Particulate Respirator Facemask by RZ Mask - Meets N95 & N99 Standards HM TDS-3 Meter is ideal for both residential and commercial applications including but not limited to water purification, waste-water regulation, aquaculture, hydroponics, and residential RO applications. Measurement range is 0-9990 ppm. TDS Meters Are Used To: This particular TDS meter is highly efficient and accurate due to its advanced microprocessor technology. The HM TDS-3 comes factory calibrated with a 342 ppm NaCl solution (meters can be easily recalibrated with a mini-screwdriver). The HM TDS3 also features: TDS3 Meter Specifications:
