18x24x4 (3 5/8) Furnace Air Filters MERV 10 Pleated Plus Carbon 2 Pack spl_cg The HI12943 is a pH

The HI12943 is a pH electrode for the direct measurement of pH in soil and soilless media

replaceable pH electrode cartridge

It is designed to be active across a diverse range of high-value produce

Reflective

Ignitors are components inside magnetic ballasts

18x24x4 (3 5/8) Furnace Air Filters MERV 10 Pleated Plus Carbon 2 Pack spl_cg The HI12943 is a pHNordic Pure 18x24x4 MERV 10 Pleated 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