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Nordic Pure 20x25x4 MERV 12 Pleated AC Furnace Air Filters 2 Pack 2,619 $37 79 ($18.90/Count) Case of 4 Made in Canada by Furnace Filters.Ca. 336. Pleated FPR 10 Air Filter captures a high percentage of household air particles, including those which are most harmful to your lungs. FREE Shipping. It's time to replace your 20x25x1 air filters. 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Must Confirm Actual Size 19 3/8" x 24 3/8" x 3 5/8". duststop filters. 4 20x25x4 Air Filter for 29.59 each Add to Cart. Free delivery. Actual Size 19 3/4" x 24 3/4" x 4 3/8." Lennox Healthy Climate 16x25x5 X6670 MERV 11 Filter-Actual Size 15 3/4" x 24 3/4" x 4 3/8". Sold & shipped by Air Filters Delivered LLC. of 3, 20x20x4 (3 5/8") MERV 11 Replacement Filter, Actual Size 19-1/2 x 19-1/2 x 3-5/8. Related Products. One Inch Size: Filtrete Air Filter are only 1" thick. Filtrete 20x25x4, AC Furnace Air Filter, MPR 1000 DP, Micro Allergen Defense Deep Pleat, 2-Pack (exact dimensions 19.88 x 24.56 x 4.2) 4.7 out of 5 stars 4,715. Pack of 3. Air & Furnace Filters Showing 1-2 of 2 List View. Pack of 2 Filters. Case of 4. SKU: ZLP20254-2PK Availability: In Stock: Ships in 1 Business Days Shipping: Free Shipping MERV: 10 Pleats per Foot: 9 Media Square Feet: 19.34 Nominal Size: 20x25x4 Actual Size: 19-1/2 x 24-1/2 x 3-3/4 Sizing Information: (Nominal Size vs. Actual Size) Change Frequency: Up to 180 Days . Filter frames are made of beverage board, which stays strong through humidity and temperatures up to 200° F. Synthetic media provides significantly higher particulate efficiency than standard cotton media. Filtrete Allergen Bacteria and Virus Air Filter 1550 MPR. Shop online at Costco.com today! PureFilters 20x25x4 pleated furnace air filters are manufactured in Canada using only the highest quality materials. CDN$ 89.00 CDN$ 89. CDN$ 159.96 CDN$ 159. Air Filter Size 20x25x4 Allergen Proof Yes Country of Origin CA-Canada Filter Type Electrostatic pleated Pack Quantity 4 Warranty / Certifications. Replaces Honeywell 203720, FC35A1027, FC100A1037, FC200E1037, Carrier FILXXCAR-0020. 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