Filtrete 18-in W x 30-in L x 1-in MERV 13 1900 MPR Premium Allergen, Bacteria and Virus Electrostatic Pleated Air Filter in the Air Filters department at Lowes.com
18x30x1 Tier1 Air Filter Replacement MERV 8 - (6-Pack)
HDX 18 in. x 30 in. x 1 in. Elite Allergen Pleated Air Filter FPR 12, MERV 13 61201.011830 - The Home Depot
Filtrete 18-in W x 30-in L x 1-in 5 MERV Basic Pleated Air Filter (3-Pack) in the Air Filters department at Lowes.com
HDX 18 in. x 30 in. x 1 in. Standard Pleated Air Filter FPR 5, MERV 8 HDX1P5-011830 - The Home Depot
HDX 18 in. x 20 in. x 1 in. Allergen Plus Pleated Air Filter FPR 7, MERV 11 HDX1P7-011820 - The Home Depot
Dynamic C3P1830 18 x 30 Air Filter
AAF Flanders 10055.01183 Fiberglass Furnace Filter 18 x 30 x 1 in. (Pack of 12) - Walmart.com
Air-Care 18 in. x 30 in. Flexible Ac/Furnace Filter at Tractor Supply Co.
Four (4) New 18” x 30” x 1” Air Filters - household items - by owner - housewares sale - craigslist
18x30x1 Tier1 Air Filter Replacement MERV 8 - (6-Pack)
True Blue 18x30 x 1 In. Fiberglass Air Filter, 30 Days | Tarzian Hardware
Made in USA - Pleated Air Filter: 18 x 24 x 1″, MERV 8, 30 to 35% Efficiency, Wire-Backed Pleated - 79748067 - MSC Industrial Supply
Filtrete 18x30x1 Allergen Defense Air Filter 1000 Mpr : Target
18" x 30" x 2" filter - MERV 11 - FST Filtration
Merv 8 Pleated Air Filter - 18" x 30" x 1" – Any Kind Of Filter
Ace 18 in. W X 30 in. H X 1 in. D Synthetic 8 MERV Pleated Air Filter 1 pk - Ace Hardware
Honeywell 18 x 30 x 1 in. Allergen + Pleated Air Filter MERV 11 FPR 7 Value Pack | eBay
HDX 18 in. x 30 in. x 1 in. Allergen Plus Pleated Air Filter FPR 7, MERV 11 HDX1P7-011830 - The Home Depot