Geothermal Furnace Filters

30x36x2 Merv 11 Geothermal Filter
$174.99

30x36x2 Merv 11 Geothermal Filter

29-3/4" x 35-3/4" x 1-3/4"

$174.99
30x30x2 Merv 11 Geothermal Filter
$149.99

30x30x2 Merv 11 Geothermal Filter

29-3/4" x 29-3/4" x 1-3/4"

$149.99
30x32x2 Merv 11 Geothermal Filter
$174.99

30x32x2 Merv 11 Geothermal Filter

29-3/4" x 31-3/4" x 1-3/4"

$174.99