1 inch

Air Filter: 18-3/8x18-3/8x1 Essential

MSRP:

Was:

Now: $19.00
Air Filter: 18-3/8x20-1/2x1 Essential

MSRP:

Was:

Now: $19.00
Air Filter: 18-1/4x24-1/4x1 Essential

MSRP:

Was:

Now: $19.00
Air Filter: 18-1/4x25-1/4x1 Essential

MSRP:

Was:

Now: $19.00
Air Filter: 18-1/2x20-1/4x1 Essential

MSRP:

Was:

Now: $19.00
Air Filter: 18-1/4x25x1 Essential

MSRP:

Was:

Now: $19.00
Air Filter: 18-1/2x21x1 Essential

MSRP:

Was:

Now: $19.00
Air Filter: 18-1/4x27x1 Essential

MSRP:

Was:

Now: $19.00
Air Filter: 18-1/2x22-1/2x1 Essential

MSRP:

Was:

Now: $19.00
Air Filter: 18-1/4x21-1/4x1 Essential

MSRP:

Was:

Now: $19.00
Air Filter: 18x32x1 Essential

MSRP:

Was:

Now: $19.00
Air Filter: 18x27-7/8x1 Essential

MSRP:

Was:

Now: $19.00