Search query: 18 x 30 x 1 air filter
Product: K&N 20x30x1 HVAC Furnace Air Filter, Lasts a Lifetime, Washable, Merv 11, the Last HVAC Filter You Will Ever Buy, Breathe Safely at Home or in the Office (Actual Dimensions.8 x 29.6 x 19.6 inches)
Relevance (ESCI): I