Buy Quality 18x18x1 Air Filters | Custom Filters Direct

Sub Total$0.00

All filters are made in the USA – Order Today

Email Us

FILTER BY

Filters

Reset

18x18x1

Nominal Size

Actual Size

Merv Rating

Bulk Quantity Pricing

4	6	12	48	72	120

Quantity

18x18x1

17.75x17.75x1

MERV 8

$6.00

$5.40

$5.28

$5.10

$4.50

$4.20

18x18x1

17.75x17.75x1

MERV 11

$14.95

$13.46

$13.16

$12.71

$11.21

$10.47

18x18x1

17.75x17.75x1

MERV 13

$16.92

$15.23

$14.89

$14.38

$12.69

$11.84

Basket View Basket

Your basket is currently empty. Why not check our Bestsellers?

Continue Shopping View Basket

Filters

MERV Rating

Nominal Length

Nominal Width

Nominal Depth

18x18x1

Basket View Basket