18x20x1 MERV 2 Non Pleated Air Filter Replacement Filters (Actual Size 17.75 x 19.75) - 3 Pack Brazing Solder Rods with actual front end outer

with actual front end outer dimensions of 5"

+ Product Details Size - 4" Diameter is the size for the duct opening measurement only

+ Product Description Introducing our 8" x 10" or 10" x 8" Floor Grille - a reliable and durable air grill designed for exceptional performance and built to last

this guard ensures long-lasting protection and security

Experience the difference in quality with our sleek design and hassle-free functionality

18x20x1 MERV 2 Non Pleated Air Filter Replacement Filters (Actual Size 17.75 x 19.75) - 3 Pack Brazing Solder Rods with actual front end outer+ Product Details 18" x 20" x 1" replacement air filters for your furnace, air conditioner, heat pump, or HVAC system (actual size: 17. 75" x 19. 75") A unique combination of cotton & synthetic fibers gives you the most filtration and the least air resistance equals great air & easy airflow for your system. The non pleated design provides low airflow resistance while still effectively capturing dirt and particles such as standing dust, spray paint