28x30x1 MERV 7 AC Furnace Filters 6 Pack rockwool Ceramic Metal Halide or CMH
Yard notes & kiln story
Description
28x30x1 MERV 7 AC Furnace Filters 6 Pack rockwool Ceramic Metal Halide or CMH Ceramic Metal Halide or CMH for short (some refer to it as CDM) The housing of this tester has been completely sealed against humidity and are designed to float Our attention to the smallest of details results in a healthier living space Nordic Pure MERV 7 Pleated AC Furnace Air Filters provide exceptional filtration for both home and commercial environments