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$57.50/Pack of (6)

20 x 22 x 1 Blue Standard Filter Pads...

SKU: 1BL_400-449_20x22x1 | Brand: Universal
$57.50/Pack of (6)
$0.00/Case of (6)

20 x 22 x 1 MERV8 Pleated Filters...

SKU: MERV8_20x22x1 | Brand: Flanders
$0.00/each

20 x 22 x 1 Metal Filter Frame...

SKU: METALFrame250-499_20x22x1 | Brand: Universal
$0.00/Frame & (6) Pads

20 x 22 x 1 Orange Pads & Frame...

SKU: OP&F_250-499_20x22x1 | Brand: Universal
$0.00/Frame & (12) Pads

20 x 22-1/4 x 1 Blue Pads & Frame...

SKU: BP&F_250-499_20x22.25x1 | Brand: Universal
$0.00/each

20 x 22-1/4 x 1 Metal Filter Frame...

SKU: METALFrame250-499_20x22.25x1 | Brand: Universal
$0.00/Frame & (6) Pads

20 x 22-1/4 x 1 Orange Pads & Frame...

SKU: OP&F_250-499_20x22.25x1 | Brand: Universal
$135.70/Case of (12)

20 x 23 x 1 MERV8 Pleated Filters...

SKU: MERV8_20x23x1 | Brand: Flanders
$135.70/Case of (12)
$0.00/Frame & (6) Pads

20 x 23 x 1 Orange Pads & Frame...

SKU: OP&F_250-499_20x23x1 | Brand: Universal
$129.60/Case of (12)

FLRSF1235 OEM 22-3/4" x 19-3/4" x 3/4" Filter...

SKU: FLRSF1235 | Brand: Trane
$129.60/Case of (12)
$69.06/each

20 x 24 x 1 Aluminum Frame Filter...

SKU: ECONOMIZER_401-500_20x24x1 | Brand: Flanders
$69.06/each
$0.00/Frame & (12) Pads

20 x 24 x 1 Blue Pads & Frame...

SKU: BP&F_250-499_20x24x1 | Brand: Universal
$57.50/Pack of (6)

20 x 24 x 1 Blue Standard Filter Pads...

SKU: 1BL_450-499_20x24x1 | Brand: Universal
$57.50/Pack of (6)
$0.00/Pack of (4)

20 x 24 x 1 Dynamic Replacement Media...

SKU: FMI-Dynamic_20x24x1 | Brand: Universal
$275.00/Each

20 x 24 x 1 Dynamic® Air Cleaner...

SKU: DynamicAirCleaner20x24x1 | Brand: Dynamic®
$275.00/Each
$58.00/ (3)-Pack

20 x 24 x 1 Dynamic® Media Pads...

SKU: GenuineDynamic20x24x1 | Brand: Dynamic®
$58.00/ (3)-Pack
$0.00/each

20 x 24 x 1 EnviroGREEN™ MERV8 Washable Filte...

SKU: EG8-20x24x1 | Brand: Dust Free
$0.00/each

20 x 24 x 1 Filter Frame ABS/Plastic...

SKU: ABSFrame250-499_20x24x1 | Brand: Universal
$89.00/Case of (12)

20 x 24 x 1 MERV8 EQP Pleated Filters...

SKU: MERV8_20x24x1 | Brand: Universal
$89.00/Case of (12)
$0.00/each

20 x 24 x 1 Metal Filter Frame...

SKU: METALFrame250-499_20x24x1 | Brand: Universal
$0.00/Frame & (6) Pads

20 x 24 x 1 Orange Pads & Frame...

SKU: OP&F_250-499_20x24x1 | Brand: Universal
$0.00/each

20" x 24" Return Air Grille with Filter...

SKU: RAFGS2024 | Brand: Grille Tech Inc.
$0.00/each

20 x 25 x 1 Aluminum Frame Filter...

SKU: ECONOMIZER_401-500_20x25x1 | Brand: Flanders
$0.00/Frame & (12) Pads

20 x 25 x 1 Blue Pads & Frame...

SKU: BP&F_500-720_20x25x1 | Brand: Universal
$0.00/Pack of (4)

20 x 25 x 1 Dynamic Replacement Media...

SKU: FMI-Dynamic_20x25x1 | Brand: Universal
$275.00/Each

20 x 25 x 1 Dynamic® Air Cleaner...

SKU: DynamicAirCleaner20x25x1 | Brand: Dynamic®
$275.00/Each
$58.00/ (3)-Pack

20 x 25 x 1 Dynamic® Media Pads...

SKU: GenuineDynamic20x25x1 | Brand: Dynamic®
$58.00/ (3)-Pack
$0.00/each

20 x 25 x 1 EnviroGREEN™ MERV8 Washable Filte...

SKU: EG8-20x25x1 | Brand: Dust Free
$87.30/Case of (12)

20 x 25 x 1 MERV8 EQP Pleated Filters...

SKU: MERV8_20x25x1 | Brand: Universal
$87.30/Case of (12)
$0.00/each

20 x 25 x 1 Metal Filter Frame...

SKU: METALFrame250-499_20x25x1 | Brand: Universal
$62.50/Pack of (6)

20 x 25 x 1 Orange MERV8 Filter Pads...

SKU: 1OR_500-549_20x25x1 | Brand: Universal
$62.50/Pack of (6)
$0.00/Frame & (6) Pads

20 x 25 x 1 Orange Pads & Frame...

SKU: OP&F_500-720_20x25x1 | Brand: Universal
$142.70/Case of (12)

FLRSF1265 OEM 25-3/4" x 19-3/4" x 3/4" Filter...

SKU: FLRSF1265 | Brand: Trane
$142.70/Case of (12)
$0.00/each

20 x 27-1/2 x 1 Aluminum Economizer Filter...

SKU: ECONOMIZER_501-600_20x27.5x1 | Brand: AirstarFilters
$62.80/ (3)-Pack

20 x 28 x 1 Dynamic® Media Pads...

SKU: GenuineDynamic20x28x1 | Brand: Dynamic®
$62.80/ (3)-Pack
$0.00/each

20 x 30 x 1 Aluminum Frame Filter...

SKU: ECONOMIZER_501-600_20x30x1 | Brand: Flanders
$0.00/Frame & (12) Pads

20 x 30 x 1 Blue Pads & Frame...

SKU: BP&F_500-720_20x30x1 | Brand: Universal
$275.00/Each

20 x 30 x 1 Dynamic® Air Cleaner...

SKU: DynamicAirCleaner20x30x1 | Brand: Dynamic®
$275.00/Each
$62.80/ (3)-Pack

20 x 30 x 1 Dynamic® Media Pads...

SKU: GenuineDynamic20x30x1 | Brand: Dynamic®
$62.80/ (3)-Pack
$0.00/each

20 x 30 x 1 Filter Frame ABS/Plastic...

SKU: ABSFrame500-720_20x30x1 | Brand: Universal
$108.25/Case of (12)

20 x 30 x 1 MERV8 EQP Pleated Filters...

SKU: MERV8_20x30x1 | Brand: Universal
$108.25/Case of (12)
$0.00/each

20 x 30 x 1 Metal Filter Frame...

SKU: METALFrame500-750_20x30x1 | Brand: Universal
$0.00/Frame & (6) Pads

20 x 30 x 1 Orange Pads & Frame...

SKU: OP&F_500-720_20X30X1 | Brand: Universal
$0.00/Frame & (12) Pads

20 x 34 x 1 Blue Pads & Frame...

SKU: BP&F_OVERSIZE_20x34x1 | Brand: Universal
$0.00/Frame & (6) Pads

20 x 34 x 1 Orange Pads & Frame...

SKU: OP&F_OVERSIZE_20x34x1 | Brand: Universal
$62.80/ (3)-Pack

20 x 36 x 1 Dynamic® Media Pads...

SKU: GenuineDynamic20x36x1 | Brand: Dynamic®
$62.80/ (3)-Pack
$360.00/Each

20 x 40 x 1 Dynamic® Air Cleaner...

SKU: DynamicAirCleaner20x40x1 | Brand: Dynamic®
$360.00/Each
$62.80/ (3)-Pack

20 x 48 x 1 Dynamic® Media Pads...

SKU: GenuineDynamic20x48x1 | Brand: Dynamic®
$62.80/ (3)-Pack
$0.00/each

20-1/8 x 23-1/8 x 1 EnviroGREEN™ MERV8 Washab...

SKU: EG8_400-499_20-1/8x23-1/8x1 | Brand: Dust Free
$59.50/Pack of (6)

20-1/4 x 20-1/4 x 1 Orange MERV8 Filter Pads...

SKU: 1OR_400-499_20-1/4x20-1/4x1 | Brand: Universal
$59.50/Pack of (6)
$0.00/Case of (12)

20-1/2 x 21 x 1 MERV8 Pleated Filters...

SKU: MERV8_20.5x21x1 | Brand: Universal
$0.00/Frame & (12) Pads

21 x 21 x 1 Blue Pads & Frame...

SKU: BP&F_250-499_21x21x1 | Brand: Universal
$57.50/Pack of (6)

21 x 21 x 1 Blue Standard Filter Pads...

SKU: 1BL_400-449_21x21x1 | Brand: Universal
$57.50/Pack of (6)
$0.00/Case of (6)

21 x 21 x 1 MERV8 Pleated Filters...

SKU: MERV8_21x21x1 | Brand: Flanders
$0.00/each

21 x 21 x 1 Metal Filter Frame...

SKU: METALFrame250-499_21x21x1 | Brand: Universal
$59.50/Pack of (6)

21 x 21 x 1 Orange MERV8 Filter Pads...

SKU: 1OR_400-499_21x21x1 | Brand: Universal
$59.50/Pack of (6)
$0.00/Frame & (6) Pads

21 x 21 x 1 Orange Pads & Frame...

SKU: OP&F_250-499_21x21x1 | Brand: Universal
$140.20/Case of (2)

BAYFTAH21M PerfectFit™ 21-1/2" x 21" x 5" Fil...

SKU: FLR06072 | Brand: Trane
$140.20/Case of (2)
$0.00/Frame & (12) Pads

21 x 22 x 1 Blue Pads & Frame...

SKU: BP&F_250-499_21x22x1 | Brand: Universal
$57.50/Pack of (6)

21 x 22 x 1 Blue Standard Filter Pads...

SKU: 1BL_450-499_21x22x1 | Brand: Universal
$57.50/Pack of (6)
$0.00/each

21 x 22 x 1 Filter Frame ABS/Plastic...

SKU: ABSFrame250-499_21x22x1 | Brand: Universal
$0.00/Case of (6)

21 x 22 x 1 MERV8 Pleated Filters...

SKU: MERV8_21x22x1 | Brand: Flanders
$0.00/each

21 x 22 x 1 Metal Filter Frame...

SKU: METALFrame250-499_21x22x1 | Brand: Universal
$0.00/Frame & (6) Pads

21 x 22 x 1 Orange Pads & Frame...

SKU: OP&F_250-499_21x22x1 | Brand: Universal
$0.00/Frame & (12) Pads

21 x 23 x 1 Blue Pads & Frame...

SKU: BP&F_250-499_21x23x1 | Brand: Universal
$0.00/each

21 x 23 x 1 Filter Frame ABS/Plastic...

SKU: ABSFrame250-499_21x23x1 | Brand: Universal
$135.70/Case of (6)

21 x 23 x 1 MERV8 Pleated Filters...

SKU: MERV8_21x23x1 | Brand: Flanders
$135.70/Case of (6)
$49.25/each

21 x 23 x 1 Metal Filter Frame...

SKU: METALFrame250-499_21x23x1 | Brand: Universal
$49.25/each
$59.50/Pack of (6)

21 x 23 x 1 Orange MERV8 Filter Pads...

SKU: 1OR_450-499_21x23x1 | Brand: Universal
$59.50/Pack of (6)
$0.00/Frame & (6) Pads

21 x 23 x 1 Orange Pads & Frame...

SKU: OP&F_250-499_21x23x1 | Brand: Universal
$144.80/Case of (2)

BAYFTAH23M PerfectFit™ 23" X 21" X 5" Filter...

SKU: FLR06073 | Brand: Trane
$144.80/Case of (2)
$0.00/each

21 x 37 x 1 Aluminum / Economizer Filter...

SKU: ECONOMIZER_21x37x1 | Brand: Flanders
$0.00/Frame & (12) Pads

21-1/8 x 21-3/8 x 1 Blue Pads & Frame...

SKU: BP&F_250-499_21.13x21.38x1 | Brand: Universal
$0.00/each

21-1/8 x 21-3/8 x 1 Metal Filter Frame...

SKU: METALFrame250-499_21.125x23.375x1 | Brand: Universal
$0.00/Frame & (6) Pads

21-1/8 x 21-3/8 x 1 Orange Pads & Frame...

SKU: OP&F_250-499_21.13x21.38x1 | Brand: Universal
$0.00/Case of (12)

20-1/8 x 23-1/8 x 1 PolyBlue Framed Filters...

SKU: POLYBLUE499_20.125x23.125x1 | Brand: Universal
$0.00/Frame & (12) Pads

21-1/4 x 21-1/4 x 1 Blue Pads & Frame...

SKU: BP&F_250-499_21.25x21.25x1 | Brand: Universal
$0.00/each

21-1/4 x 21-1/4 x 1 Filter Frame ABS/Plastic...

SKU: ABSFrame250-499_21.25x21.25x1 | Brand: Universal
$0.00/Case of (12)

21-1/4 x 21-1/4 x 1 MERV8 Pleated Filters...

SKU: MERV8_21.25x21.25x1 | Brand: Flanders
$0.00/each

21-1/4 x 21-1/4 x 1 Metal Filter Frame...

SKU: METALFrame250-499_2125x21.25x1 | Brand: Universal
$0.00/Frame & (6) Pads

21-1/4 x 21-1/4 x 1 Orange Pads & Frame...

SKU: OP&F_250-499_21.25x21.25x1 | Brand: Universal
$0.00/Frame & (12) Pads

21-1/4 x 21-1/2 x 1 Blue Pads & Frame...

SKU: BP&F_250-499_21.25x21.5x1 | Brand: Universal
$0.00/each

21-1/4 x 21-1/2 x 1 Metal Filter Frame...

SKU: METALFrame250-499_21.25x21.5x1 | Brand: Universal
$0.00/Frame & (6) Pads

21-1/4 x 21-1/2 x 1 Orange Pads & Frame...

SKU: OP&F_250-499_21.25x21.5x1 | Brand: Universal
$0.00/Frame & (12) Pads

21-1/4 x 22 x 1 Blue Pads & Frame...

SKU: BP&F_250-499_21.25x22x1 | Brand: Universal
$0.00/each

21-1/4 x 22 x 1 Metal Filter Frame...

SKU: METALFrame250-499_21.25x22x1 | Brand: Universal
$0.00/Frame & (6) Pads

21-1/4 x 22 x 1 Orange Pads & Frame...

SKU: OP&F_250-499_21.25x22x1 | Brand: Universal
$0.00/Frame & (12) Pads

21-1/4 x 23-1/4 x 1 Blue Pads & Frame...

SKU: BP&F_250-499_21.25x23.25x1 | Brand: Universal
$0.00/each

21-1/4 x 23-1/4 x 1 Filter Frame ABS/Plastic...

SKU: ABSFrame250-499_21.25x23.25x1 | Brand: Universal
$0.00/each

21-1/4 x 23-1/4 x 1 Metal Filter Frame...

SKU: METALFrame250-499_21.25x23.25x1 | Brand: Universal
$0.00/Frame & (6) Pads

21-1/4 x 23-1/4 x 1 Orange Pads & Frame...

SKU: OP&F_250-499_21.25x23.25x1 | Brand: Universal
$126.70/Case of (12)

21-3/8 x 23-3/8 x 1 PolyBlue Framed Filters...

SKU: POLYBLUE599_21.375x23.375x1 | Brand: Universal
$126.70/Case of (12)
$0.00/Frame & (12) Pads

21-1/2 x 21-1/2 x 1 Blue Pads & Frame...

SKU: BP&F_250-499_21.5x21.5x1 | Brand: Universal
$0.00/Case of (6)

21-1/2 x 21-1/2 x 1 MERV8 Pleated Filters...

SKU: MERV8_21.5x21.5x1 | Brand: Flanders
$0.00/each

21-1/2 x 21-1/2 x 1 Metal Filter Frame...

SKU: METALFrame250-499_21.5x21.5x1 | Brand: Universal
$0.00/Frame & (6) Pads

21-1/2 x 21-1/2 x 1 Orange Pads & Frame...

SKU: OP&F_250-499_21.5x21.5x1 | Brand: Universal
$0.00/Frame & (12) Pads

21-1/2 x 23-1/4 x 1 Blue Pads & Frame...

SKU: BP&F_500-720_21.5x23.25x1 | Brand: Universal
$0.00/Pack of (4)

21-1/2 x 23-1/4 x 1 Dynamic Replacement Media...

SKU: FMI-Dynamic_21.5x23.25x1 | Brand: Universal
$0.00/each

21-1/2 x 23-1/4 x 1 Metal Filter Frame...

SKU: METALFrame250-499_21.55x23.25x1 | Brand: Universal
$0.00/Frame & (6) Pads

21-1/2 x 23-1/4 x 1 Orange Pads & Frame...

SKU: OP&F_500-720_21.5x23.25x1 | Brand: Universal