18x25x1 Furnace Air Filters MERV 8 Pleated Plus Carbon 24 Pack water-pumps-&-irrigation-supplies TDS Range: 0-5000 ppm (mg/L)

TDS Range: 0-5000 ppm (mg/L)

The calibration buffers are automatically recognized and after calibration the buffer values used are shown on the display as a tag

Plant Amp is a chelated calcium product that also contains a proprietary organic plant stimulating ingredient

MERV 14 furnace air conditioner filters are comparable to HVAC filters with the rating of MPR 2800

18x25x1 Furnace Air Filters MERV 8 Pleated Plus Carbon 24 Pack water-pumps-&-irrigation-supplies TDS Range: 0-5000 ppm (mg/L)Nordic Pure 18x25x1 MERV 8 Plus Carbon air filters are made of a dual material where the MERV rated material has been fused together with a carbon layer. This results in less flow restriction and 33% more surface area for cleaner smelling air. It will help eliminate unwanted odors as well as trap most airborne dust and particulate matter for fresh, clean air. Odorous gases and vapors (VOC) are attracted to and held by the activated carbon material