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| Best Seller  | BESTAIR PRO NRSG211-11-2B 20 in x 25 in x 4 in Synthetic Furnace Air Cleaner Furnace Air Cleaner Filter, Filter Type Pleated, Performance Rating MERV 11, Actual Depth 3 3/4 in, Actual Height 28 1/4 in, Actual Width 16 in, Compatible Manufacturer Model Number Aprilaire Space Gard 2200, Aprilaire Space Gard 2250, Lennox PMAC-20C,... ... more
BESTAIR PRO NRSG211-11-2B 20 in x 25 in x 4 in Synthetic Furnace Air Cleaner Furnace Air Cleaner Filter, Filter Type Pleated, Performance Rating MERV 11, Actual Depth 3 3/4 in, Actual Height 28 1/4 in, Actual Width 16 in, Compatible Manufacturer Model Number Aprilaire Space Gard 2200, Aprilaire Space Gard 2250, Lennox PMAC-20C,... | go to store |
 | BESTAIR PRO 5-2020-13-2 20 in x 20 in x 5 in Synthetic Furnace Air Cleaner Furnace Air Cleaner Filter, Filter Type Pleated, Performance Rating MERV 13, Actual Depth 4 1/4 in, Actual Height 19 1/2 in, Actual Width 19 1/2 in, Compatible Grainger Part Number 2TE82, 33R166, 33R193, Compatible Manufacturer Model Number F100B1024,... ... more
BESTAIR PRO 5-2020-13-2 20 in x 20 in x 5 in Synthetic Furnace Air Cleaner Furnace Air Cleaner Filter, Filter Type Pleated, Performance Rating MERV 13, Actual Depth 4 1/4 in, Actual Height 19 1/2 in, Actual Width 19 1/2 in, Compatible Grainger Part Number 2TE82, 33R166, 33R193, Compatible Manufacturer Model Number F100B1024,... | go to store |
| Best Seller  | BESTAIR PRO 5-2020-8-2 20 in x 20 in x 5 in Synthetic Furnace Air Cleaner Furnace Air Cleaner Filter, Filter Type Pleated, Performance Rating MERV 8, Actual Depth 4 3/4 in, Actual Height 19 1/2 in, Actual Width 19 1/2 in, Compatible Grainger Part Number 2TE82, 33R166, 33R193, Compatible Manufacturer Model Number F100B1024,... ... more
BESTAIR PRO 5-2020-8-2 20 in x 20 in x 5 in Synthetic Furnace Air Cleaner Furnace Air Cleaner Filter, Filter Type Pleated, Performance Rating MERV 8, Actual Depth 4 3/4 in, Actual Height 19 1/2 in, Actual Width 19 1/2 in, Compatible Grainger Part Number 2TE82, 33R166, 33R193, Compatible Manufacturer Model Number F100B1024,... | go to store |
 | Air-Care electrostatic air filters are 10 times more efficient than the standard disposable filter. By switching to a permanent electrostatic furnace filter, the air inside your home will be cleaner and fresher. Our furnace filters are... ... more | $99.99 $50.99 FREE shipping go to store |
 | The Filterbuy replacement air filter 16x20x4 (actual measurements: 15.38" x 19.38" x 3.63") ensures that your furnace, air conditioner, heat pump, or HVAC system is circulating the cleanest air possible to help preserve your budget and healthy... ... more | $183.07 $140.82 FREE shipping go to store |
 | The Filterbuy replacement air filter 20x25x4 (actual measurements: 19.38" x 24.38" x 3.63") ensures that your furnace, air conditioner, heat pump, or HVAC system is circulating the cleanest air possible to help preserve your budget and healthy... ... more | $138.26 $106.35 FREE shipping go to store |
 | Filti 7500 Pleated Home HVAC Furnace 16 x 20 x 2 MERV 13 Air Filter (2 Pack) - 14.4 Keep your furnace system running its best by replacing the filter every 3 months. ... more | $39.99 $37.99 FREE shipping go to store |
 | Filti 7500 Pleated Home HVAC Furnace 20 x 20 x 1 MERV 13 Air Filter (4 Pack) - 0.75 Keep your furnace system running its best by replacing the filter every 3 months. ... more | $39.97 $35.97 FREE shipping go to store |
 | Filti 7500 Pleated Home HVAC Furnace 20 x 25 x 1 MERV 13 Air Filter (4 Pack) - 2.35 Keep your furnace system running its best by replacing the filter every 3 months. ... more | $59.96 $56.96 FREE shipping go to store |
 | BESTAIR PRO AB-52025-11-2 20 in x 25 in x 5 in Synthetic Furnace Air Cleaner Furnace Air Cleaner Filter, Filter Type Pleated, Performance Rating MERV 11, Actual Depth 4 7/8 in, Actual Height 19 3/4 in, Actual Width 24 1/4 in, Compatible Manufacturer Model Number 162025, 162026, 90-007, DB0-0025-020, MAC2000, S1-MAC10202505,... ... more
BESTAIR PRO AB-52025-11-2 20 in x 25 in x 5 in Synthetic Furnace Air Cleaner Furnace Air Cleaner Filter, Filter Type Pleated, Performance Rating MERV 11, Actual Depth 4 7/8 in, Actual Height 19 3/4 in, Actual Width 24 1/4 in, Compatible Manufacturer Model Number 162025, 162026, 90-007, DB0-0025-020, MAC2000, S1-MAC10202505,... | go to store |
 | BESTAIR PRO AB-52025-8-2 20 in x 25 in x 5 in Synthetic Furnace Air Cleaner Furnace Air Cleaner Filter, Filter Type Pleated, Performance Rating MERV 8, Actual Depth 4 7/8 in, Actual Height 19 3/4 in, Actual Width 24 1/4 in, Compatible Manufacturer Model Number 162025, 162026, 2000, 435790-027, 455602-019, 459200-005, 90-007,... ... more
BESTAIR PRO AB-52025-8-2 20 in x 25 in x 5 in Synthetic Furnace Air Cleaner Furnace Air Cleaner Filter, Filter Type Pleated, Performance Rating MERV 8, Actual Depth 4 7/8 in, Actual Height 19 3/4 in, Actual Width 24 1/4 in, Compatible Manufacturer Model Number 162025, 162026, 2000, 435790-027, 455602-019, 459200-005, 90-007,... | go to store |
 | BESTAIR PRO 5-1620-11-2 16 in x 20 in x 5 in Synthetic Furnace Air Cleaner Furnace Air Cleaner Filter, Filter Type Pleated, Performance Rating MERV 11, Actual Depth 4 3/8 in, Actual Height 15 3/4 in, Actual Width 19 3/4 in, Compatible Grainger Part Number 33R191, Compatible Manufacturer Model Number F100B1000, F100B1008,... ... more
BESTAIR PRO 5-1620-11-2 16 in x 20 in x 5 in Synthetic Furnace Air Cleaner Furnace Air Cleaner Filter, Filter Type Pleated, Performance Rating MERV 11, Actual Depth 4 3/8 in, Actual Height 15 3/4 in, Actual Width 19 3/4 in, Compatible Grainger Part Number 33R191, Compatible Manufacturer Model Number F100B1000, F100B1008,... | go to store |
 | BESTAIR PRO AB-52025-13-2 20 in x 25 in x 5 in Synthetic Furnace Air Cleaner Furnace Air Cleaner Filter, Filter Type Pleated, Performance Rating MERV 13, Actual Depth 4 7/8 in, Actual Height 19 3/4 in, Actual Width 24 1/4 in, Compatible Manufacturer Model Number 162025, 162026, 90-007, DB0-0025-020, MAC2000, S1-MAC10202505,... ... more
BESTAIR PRO AB-52025-13-2 20 in x 25 in x 5 in Synthetic Furnace Air Cleaner Furnace Air Cleaner Filter, Filter Type Pleated, Performance Rating MERV 13, Actual Depth 4 7/8 in, Actual Height 19 3/4 in, Actual Width 24 1/4 in, Compatible Manufacturer Model Number 162025, 162026, 90-007, DB0-0025-020, MAC2000, S1-MAC10202505,... | go to store |
 | BESTAIR PRO 5-1620-13-2 16 in x 20 in x 5 in Synthetic Furnace Air Cleaner Furnace Air Cleaner Filter, Filter Type Pleated, Performance Rating MERV 13, Actual Depth 4 3/8 in, Actual Height 15 3/4 in, Actual Width 19 3/4 in, Compatible Grainger Part Number 33R191, Compatible Manufacturer Model Number F100B1000, F100B1008,... ... more
BESTAIR PRO 5-1620-13-2 16 in x 20 in x 5 in Synthetic Furnace Air Cleaner Furnace Air Cleaner Filter, Filter Type Pleated, Performance Rating MERV 13, Actual Depth 4 3/8 in, Actual Height 15 3/4 in, Actual Width 19 3/4 in, Compatible Grainger Part Number 33R191, Compatible Manufacturer Model Number F100B1000, F100B1008,... | go to store |
 | BESTAIR PRO A201-SGM-BOX-11R 20 in x 25 in x 6 in Synthetic Furnace Air Cleaner Furnace Air Cleaner Filter, Filter Type Pleated, Performance Rating MERV 11, Actual Depth 6 in, Actual Height 19 3/4 in, Actual Width 24 1/4 in, Compatible Manufacturer Model Number Aprilaire Space Gard 2200, Aprilaire Space Gard 2250, PMAC-20C, Number... ... more
BESTAIR PRO A201-SGM-BOX-11R 20 in x 25 in x 6 in Synthetic Furnace Air Cleaner Furnace Air Cleaner Filter, Filter Type Pleated, Performance Rating MERV 11, Actual Depth 6 in, Actual Height 19 3/4 in, Actual Width 24 1/4 in, Compatible Manufacturer Model Number Aprilaire Space Gard 2200, Aprilaire Space Gard 2250, PMAC-20C, Number... | go to store |
 | BESTAIR PRO CB2025-13C 20 in x 25 in x 5 in Synthetic Furnace Air Cleaner Furnace Air Cleaner Filter, Filter Type Pleated, Performance Rating MERV 13, Actual Depth 4 3/8 in, Actual Height 19 7/8 in, Actual Width 24 3/4 in, Compatible Manufacturer Model Number EZXCAB, EZXCAB1020, EZXCABBB0020, EZXCABBB1020, EZXCABCC0020,... ... more
BESTAIR PRO CB2025-13C 20 in x 25 in x 5 in Synthetic Furnace Air Cleaner Furnace Air Cleaner Filter, Filter Type Pleated, Performance Rating MERV 13, Actual Depth 4 3/8 in, Actual Height 19 7/8 in, Actual Width 24 3/4 in, Compatible Manufacturer Model Number EZXCAB, EZXCAB1020, EZXCABBB0020, EZXCABBB1020, EZXCABCC0020,... | go to store |
 | BESTAIR PRO 5-2025-11-2 20 in x 25 in x 5 in Synthetic Furnace Air Cleaner Furnace Air Cleaner Filter, Filter Type Pleated, Performance Rating MERV 11, Actual Depth 4 1/4 in, Actual Height 20 in, Actual Width 24 5/8 in, Compatible Grainger Part Number 33R168, 33R194, 33R295, Compatible Manufacturer Model Number F100B1032,... ... more
BESTAIR PRO 5-2025-11-2 20 in x 25 in x 5 in Synthetic Furnace Air Cleaner Furnace Air Cleaner Filter, Filter Type Pleated, Performance Rating MERV 11, Actual Depth 4 1/4 in, Actual Height 20 in, Actual Width 24 5/8 in, Compatible Grainger Part Number 33R168, 33R194, 33R295, Compatible Manufacturer Model Number F100B1032,... | go to store |
 | BESTAIR PRO 5-2025-13-2 20 in x 25 in x 5 in Synthetic Furnace Air Cleaner Furnace Air Cleaner Filter, Filter Type Pleated, Performance Rating MERV 13, Actual Depth 4 1/4 in, Actual Height 20 in, Actual Width 24 5/8 in, Compatible Grainger Part Number 33R168, 33R194, 33R295, Compatible Manufacturer Model Number F100B1032,... ... more
BESTAIR PRO 5-2025-13-2 20 in x 25 in x 5 in Synthetic Furnace Air Cleaner Furnace Air Cleaner Filter, Filter Type Pleated, Performance Rating MERV 13, Actual Depth 4 1/4 in, Actual Height 20 in, Actual Width 24 5/8 in, Compatible Grainger Part Number 33R168, 33R194, 33R295, Compatible Manufacturer Model Number F100B1032,... | go to store |
 | BESTAIR PRO AB-31625-11-2 16 in x 25 in x 3 in Synthetic Furnace Air Cleaner Furnace Air Cleaner Filter, Filter Type Pleated, Performance Rating MERV 11, Actual Depth 3 in, Actual Height 15 3/4 in, Actual Width 24 1/4 in, Compatible Manufacturer Model Number 455622-425, 90-006, 90-031, BMAC-12C, DB-25-16, MAC1200,... ... more
BESTAIR PRO AB-31625-11-2 16 in x 25 in x 3 in Synthetic Furnace Air Cleaner Furnace Air Cleaner Filter, Filter Type Pleated, Performance Rating MERV 11, Actual Depth 3 in, Actual Height 15 3/4 in, Actual Width 24 1/4 in, Compatible Manufacturer Model Number 455622-425, 90-006, 90-031, BMAC-12C, DB-25-16, MAC1200,... | go to store |
 | BESTAIR PRO A401-SG4-BOX-11R 16 in x 27 in x 6 in Synthetic Furnace Air Cleaner Furnace Air Cleaner Filter, Filter Type Pleated, Performance Rating MERV 11, Actual Depth 4 1/4 in, Actual Height 16 in, Actual Width 27 3/4 in, Compatible Manufacturer Model Number Aprilaire Space Gard 2140, Aprilaire Space Gard 2400, PMAC12, Number... ... more
BESTAIR PRO A401-SG4-BOX-11R 16 in x 27 in x 6 in Synthetic Furnace Air Cleaner Furnace Air Cleaner Filter, Filter Type Pleated, Performance Rating MERV 11, Actual Depth 4 1/4 in, Actual Height 16 in, Actual Width 27 3/4 in, Compatible Manufacturer Model Number Aprilaire Space Gard 2140, Aprilaire Space Gard 2400, PMAC12, Number... | go to store |
 | BESTAIR PRO 5-1625-13-2 16 in x 25 in x 5 in Synthetic Furnace Air Cleaner Furnace Air Cleaner Filter, Filter Type Pleated, Performance Rating MERV 13, Actual Depth 4 3/8 in, Actual Height 15 3/4 in, Actual Width 24 3/4 in, Compatible Manufacturer Model Number F100B1016, F100F1012, F100F2002, F150E1026, F200E1029, F25F1000,... ... more
BESTAIR PRO 5-1625-13-2 16 in x 25 in x 5 in Synthetic Furnace Air Cleaner Furnace Air Cleaner Filter, Filter Type Pleated, Performance Rating MERV 13, Actual Depth 4 3/8 in, Actual Height 15 3/4 in, Actual Width 24 3/4 in, Compatible Manufacturer Model Number F100B1016, F100F1012, F100F2002, F150E1026, F200E1029, F25F1000,... | go to store |
 | ZORO SELECT 6U590 36 in x 25 ft x 1 in Foam Air Filter Roll, Less Than 5 MERV, Formerly Air Handler. Air Filter Roll, Style - Air Filters Roll, Nominal Filter Size 36 in x 25 ft x 1/4 in, Performance Rating Less Than 5 MERV, Filter Efficiency - Air Filters 20 Percent, Common Applications General Use, Media Material Foam, Surface... ... more
ZORO SELECT 6U590 36 in x 25 ft x 1 in Foam Air Filter Roll, Less Than 5 MERV, Formerly Air Handler. Air Filter Roll, Style - Air Filters Roll, Nominal Filter Size 36 in x 25 ft x 1/4 in, Performance Rating Less Than 5 MERV, Filter Efficiency - Air Filters 20 Percent, Common Applications General Use, Media Material Foam, Surface... | go to store |
 | TRION 255649-105 Air Cleaner Filter, Filter Type Pleated, MERV 8, 25 in W x 5 Air Cleaner Filter, Filter Type Pleated, Performance Rating MERV 8, Actual Depth 4 7/8 in, Actual Height 15 3/4 in, Actual Width 24 1/4 in, Compatible Grainger Part Number 4YA29, Compatible Manufacturer Model Number Air Bear Supreme 16 X 25, Filter... ... more
TRION 255649-105 Air Cleaner Filter, Filter Type Pleated, MERV 8, 25 in W x 5 Air Cleaner Filter, Filter Type Pleated, Performance Rating MERV 8, Actual Depth 4 7/8 in, Actual Height 15 3/4 in, Actual Width 24 1/4 in, Compatible Grainger Part Number 4YA29, Compatible Manufacturer Model Number Air Bear Supreme 16 X 25, Filter... | go to store |
 | The Filterbuy replacement air filter 16x20x4 (actual measurements: 15.38" x 19.38" x 3.63") ensures that your furnace, air conditioner, heat pump, or HVAC system is circulating the cleanest air possible to help preserve your budget and healthy... ... more | $129.36 $99.51 FREE shipping go to store |
 | The Filterbuy replacement air filter 20x25x4 (actual measurements: 19.38" x 24.38" x 3.63") ensures that your furnace, air conditioner, heat pump, or HVAC system is circulating the cleanest air possible to help preserve your budget and healthy... ... more | $91.33 $70.25 FREE shipping go to store |
 | The Filterbuy replacement air filter 14x25x2 (actual measurements: 13.50" x 24.50" x 1.75") ensures that your furnace, air conditioner, heat pump, or HVAC system is circulating the cleanest air possible to help preserve your budget and healthy... ... more | $110.63 $85.10 FREE shipping go to store |
 | The Filterbuy replacement air filter 20x20x4 (actual measurements: 19.38" x 19.38" x 3.63") ensures that your furnace, air conditioner, or HVAC system is circulating the cleanest air possible to help preserve your budget and healthy lifestyle. MERV 11... ... more | $97.47 $74.98 FREE shipping go to store |
 | The Filterbuy replacement air filter 20x20x4 (actual measurements: 19.38" x 19.38" x 3.63") ensures that your furnace, air conditioner, or HVAC system is circulating the cleanest air possible to help preserve your budget and healthy lifestyle. MERV 13... ... more | $184.47 $141.90 FREE shipping go to store |
 | The Filterbuy replacement air filter 20x20x4 (actual measurements: 19.38" x 19.38" x 3.63") ensures that your furnace, air conditioner, or HVAC system is circulating the cleanest air possible to help preserve your budget and healthy lifestyle. MERV 8... ... more | $64.57 $49.67 FREE shipping go to store |
 | The Filterbuy replacement air filter 20x20x4 (actual measurements: 19.38" x 19.38" x 3.63") ensures that your furnace, air conditioner, or HVAC system is circulating the cleanest air possible to help preserve your budget and healthy lifestyle. MERV 13... ... more | $77.31 $59.47 FREE shipping go to store |
 | The Filterbuy replacement air filter 20x20x4 (actual measurements: 19.38" x 19.38" x 3.63") ensures that your furnace, air conditioner, or HVAC system is circulating the cleanest air possible to help preserve your budget and healthy lifestyle. MERV 8... ... more | $136.58 $105.06 FREE shipping go to store |
 | The Filterbuy replacement air filter 20x20x4 (actual measurements: 19.38" x 19.38" x 3.63") ensures that your furnace, air conditioner, or HVAC system is circulating the cleanest air possible to help preserve your budget and healthy lifestyle. MERV 8... ... more | $234.62 $180.48 FREE shipping go to store |
 | The Filterbuy replacement air filter 20x20x4 (actual measurements: 19.38" x 19.38" x 3.63") ensures that your furnace, air conditioner, or HVAC system is circulating the cleanest air possible to help preserve your budget and healthy lifestyle. MERV 11... ... more | $136.24 $104.80 FREE shipping go to store |
 | The Filterbuy replacement air filter 20x20x4 (actual measurements: 19.38" x 19.38" x 3.63") ensures that your furnace, air conditioner, heat pump, or HVAC system is circulating the cleanest air possible to help preserve your budget and healthy... ... more | $113.31 $87.16 FREE shipping go to store |
 | The Filterbuy replacement air filter 20x20x4 (actual measurements: 19.38" x 19.38" x 3.63") ensures that your furnace, air conditioner, or HVAC system is circulating the cleanest air possible to help preserve your budget and healthy lifestyle. MERV 11... ... more | $256.31 $197.16 FREE shipping go to store |
 | The Filterbuy replacement air filter 20x20x4 (actual measurements: 19.38" x 19.38" x 3.63") ensures that your furnace, air conditioner, or HVAC system is circulating the cleanest air possible to help preserve your budget and healthy lifestyle. MERV 8... ... more | $89.62 $68.94 FREE shipping go to store |
 | The Filterbuy replacement air filter 20x20x4 (actual measurements: 19.38" x 19.38" x 3.63") ensures that your furnace, air conditioner, or HVAC system is circulating the cleanest air possible to help preserve your budget and healthy lifestyle. MERV 13... ... more | $328.07 $252.36 FREE shipping go to store |
 | The Filterbuy replacement air filter 20x20x4 (actual measurements: 19.38" x 19.38" x 3.63") ensures that your furnace, air conditioner, or HVAC system is circulating the cleanest air possible to help preserve your budget and healthy lifestyle. MERV 13... ... more | $156.39 $120.30 FREE shipping go to store |
 | The Filterbuy replacement air filter 20x20x4 (actual measurements: 19.38" x 19.38" x 3.63") ensures that your furnace, air conditioner, or HVAC system is circulating the cleanest air possible to help preserve your budget and healthy lifestyle. MERV 8... ... more | $131.69 $101.30 FREE shipping go to store |
 | The Filterbuy replacement air filter 14x20x2 (actual measurements: 13.50" x 19.50" x 1.75") ensures that your furnace, air conditioner, or HVAC system is circulating the cleanest air possible to help preserve your budget and healthy lifestyle. MERV 13... ... more | $79.50 $61.15 FREE shipping go to store |
Ads related to Freudenberg Filtration Technologies 14 x 20 x 4 in. Furnace Filter - Pack of 3
