20x22x1 Pleated MERV 12 Plus Carbon AC Furnace Filters 2 Pack HPS The extendable cloth junction provides

The extendable cloth junction provides an extended electrode life and the replaceable pH cartridge means that this tester does not need to be thrown away when the pH sensor is exhausted

if you connect it to a 240 Vac wall outlet all the four outputs will be 240Vac

Three-layer SMS is lightweight and breathable

more capable

20x22x1 Pleated MERV 12 Plus Carbon AC Furnace Filters 2 Pack HPS The extendable cloth junction providesNordic Pure 20x22x1 MERV 12 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