23 1/2"

85 products
    21

    21x23 1/2x1 MERV 11 - 6 PK - Ultra Allergen Furnace & AC Air Filters

    Regular price
    $95.85
    Sale price
    $76.67
    Unit price
    per 
    2516 reviews
    21

    21x23 1/2x1 MERV 8 - 6 PK - Premium Furnace & AC Air Filters

    Regular price
    $83.46
    Sale price
    $66.77
    Unit price
    per 
    2517 reviews
    13 1/2

    13 1/2x23 1/2x1 MERV 8 - 6 PK - Premium Furnace & AC Air Filters

    Regular price
    $77.86
    Sale price
    $62.29
    Unit price
    per 
    2514 reviews
    23 1/2

    23 1/2x23 1/2x1 MERV 6 - 6 PK - Premium Furnace & AC Air Filters

    Regular price
    $75.89
    Sale price
    $60.71
    Unit price
    per 
    2517 reviews
    22

    22x23 1/2x1 MERV 8 - 6 PK - Premium Furnace & AC Air Filters

    Regular price
    $87.85
    Sale price
    $70.27
    Unit price
    per 
    2514 reviews
    21 1/2

    21 1/2x23 1/2x1 MERV 8 - 6 PK - Premium Furnace & AC Air Filters

    Regular price
    $78.21
    Sale price
    $62.57
    Unit price
    per 
    2517 reviews
    21 1/2

    21 1/2x23 1/2x1 MERV 11 - 6 PK - Ultra Allergen Furnace & AC Air Filters

    Regular price
    $90.63
    Sale price
    $72.51
    Unit price
    per 
    2514 reviews
    20

    20x23 1/2x1 MERV 8 - 6 PK - Premium Furnace & AC Air Filters

    Regular price
    $83.46
    Sale price
    $66.77
    Unit price
    per 
    2511 reviews
    19 1/8

    19 1/8x23 1/2x1 MERV 13 - 6 PK - Ultimate Allergen Furnace & AC Air Filters

    Regular price
    $107.04
    Sale price
    $85.62
    Unit price
    per 
    2517 reviews
    19 1/2

    19 1/2x23 1/2x1 MERV 8 - 6 PK - Premium Furnace & AC Air Filters

    Regular price
    $83.46
    Sale price
    $66.77
    Unit price
    per 
    2517 reviews
    19 1/2

    19 1/2x23 1/2x1 MERV 11 - 6 PK - Ultra Allergen Furnace & AC Air Filters

    Regular price
    $95.85
    Sale price
    $76.67
    Unit price
    per 
    2517 reviews
    17

    17x23 1/2x1 MERV 11 - 6 PK - Ultra Allergen Furnace & AC Air Filters

    Regular price
    $89.14
    Sale price
    $71.31
    Unit price
    per 
    2517 reviews
    15 1/2

    15 1/2x23 1/2x1 MERV 8 - 6 PK - Premium Furnace & AC Air Filters

    Regular price
    $77.86
    Sale price
    $62.29
    Unit price
    per 
    2517 reviews
    13 3/4

    13 3/4x23 1/2x1 MERV 8 - 6 PK - Premium Furnace & AC Air Filters

    Regular price
    $69.26
    Sale price
    $55.41
    Unit price
    per 
    2517 reviews
    13 1/2

    13 1/2x23 1/2x1 MERV 13 - 6 PK - Ultimate Allergen Furnace & AC Air Filters

    Regular price
    $99.28
    Sale price
    $79.43
    Unit price
    per 
    2514 reviews
    11 1/2

    11 1/2x23 1/2x1 MERV 8 - 6 PK - Premium Furnace & AC Air Filters

    Regular price
    $77.86
    Sale price
    $62.29
    Unit price
    per 
    2517 reviews
    9 1/2

    9 1/2x23 1/2x1 MERV 8 - 6 PK - Premium Furnace & AC Air Filters

    Regular price
    $77.86
    Sale price
    $62.29
    Unit price
    per 
    2517 reviews
    9 1/2

    9 1/2x23 1/2x1 MERV 6 - 6 PK - Premium Furnace & AC Air Filters

    Regular price
    $69.00
    Sale price
    $55.20
    Unit price
    per 
    2517 reviews
    9 1/2

    9 1/2x23 1/2x1 MERV 13 - 6 PK - Ultimate Allergen Furnace & AC Air Filters

    Regular price
    $99.28
    Sale price
    $79.43
    Unit price
    per 
    2517 reviews
    9 1/2

    9 1/2x23 1/2x1 MERV 11 - 6 PK - Ultra Allergen Furnace & AC Air Filters

    Regular price
    $89.14
    Sale price
    $71.31
    Unit price
    per 
    2517 reviews
    7 1/2

    7 1/2x23 1/2x1 MERV 8 - 6 PK - Premium Furnace & AC Air Filters

    Regular price
    $77.86
    Sale price
    $62.29
    Unit price
    per 
    2514 reviews
    7 1/2

    7 1/2x23 1/2x1 MERV 6 - 6 PK - Premium Furnace & AC Air Filters

    Regular price
    $69.00
    Sale price
    $55.20
    Unit price
    per 
    2517 reviews
    7 1/2

    7 1/2x23 1/2x1 MERV 13 - 6 PK - Ultimate Allergen Furnace & AC Air Filters

    Regular price
    $99.28
    Sale price
    $79.43
    Unit price
    per 
    2515 reviews
    7 1/2

    7 1/2x23 1/2x1 MERV 11 - 6 PK - Ultra Allergen Furnace & AC Air Filters

    Regular price
    $89.14
    Sale price
    $71.31
    Unit price
    per 
    2513 reviews
    23 1/2

    23 1/2x23 1/2x1 MERV 8 - 6 PK - Premium Furnace & AC Air Filters

    Regular price
    $87.85
    Sale price
    $70.27
    Unit price
    per 
    2517 reviews
    23 1/2

    23 1/2x23 1/2x1 MERV 13 - 6 PK - Ultimate Allergen Furnace & AC Air Filters

    Regular price
    $113.05
    Sale price
    $90.44
    Unit price
    per 
    2517 reviews
    23 1/2

    23 1/2x23 1/2x1 MERV 11 - 6 PK - Ultra Allergen Furnace & AC Air Filters

    Regular price
    $101.10
    Sale price
    $80.87
    Unit price
    per 
    2517 reviews
    22

    22x23 1/2x1 MERV 6 - 6 PK - Premium Furnace & AC Air Filters

    Regular price
    $75.89
    Sale price
    $60.71
    Unit price
    per 
    2517 reviews
    22

    22x23 1/2x1 MERV 13 - 6 PK - Ultimate Allergen Furnace & AC Air Filters

    Regular price
    $113.05
    Sale price
    $90.44
    Unit price
    per 
    2511 reviews
    22

    22x23 1/2x1 MERV 11 - 6 PK - Ultra Allergen Furnace & AC Air Filters

    Regular price
    $101.10
    Sale price
    $80.87
    Unit price
    per 
    2517 reviews
    22 1/2

    22 1/2x23 1/2x1 MERV 8 - 6 PK - Premium Furnace & AC Air Filters

    Regular price
    $87.85
    Sale price
    $70.27
    Unit price
    per 
    2517 reviews
    22 1/2

    22 1/2x23 1/2x1 MERV 6 - 6 PK - Premium Furnace & AC Air Filters

    Regular price
    $75.89
    Sale price
    $60.71
    Unit price
    per 
    2517 reviews

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