SEARCH BY FILTER SIZE

Build your own custom AC or furnace filter in a few easy steps
Nominal Size
Actual Size
Merv Rating

Bulk Quantity Pricing

4 6 12 48 72 120
Quantity

12.5x21x1

MERV 11

$14.43 $12.99 $12.70 $12.27 $10.82 $10.10

12.5x21x1

MERV 13

$19.21 $17.29 $16.90 $16.33 $14.41 $13.45

12.5x21x1

MERV 8

$9.46 $8.51 $8.32 $8.04 $7.10 $6.62

12.5x21x2

MERV 11

$15.41 $13.87 $13.56 $13.10 $11.56 $10.79

12.5x21x2

MERV 13

$18.29 $16.46 $16.10 $15.55 $13.72 $12.80

12.5x21x2

MERV 8

$11.66 $10.49 $10.26 $9.91 $8.75 $8.16

12.5x21x4

MERV 11

$21.47 $19.32 $18.89 $18.25 $16.10 $15.03

12.5x21x4

MERV 13

$22.87 $20.58 $20.13 $19.44 $17.15 $16.01

12.5x21x4

MERV 8

$20.08 $18.07 $17.67 $17.07 $15.06 $14.06