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Air Filters

NWF Supply offers a range of HVAC air filters for residential and light commercial systems designed to protect equipment and improve indoor air quality. This collection includes common sizes and MERV ratings for return grilles, filter racks, and air handlers. These filters provide reliable particulate capture, proper airflow, and consistent performance for routine system maintenance. Our primary brands are Honeywell and Glasfloss.

If the filter size or MERV rating you need is currently out of stock, please contact us — we may be able to source it or recommend an equivalent option.

Filters

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$50.00 - $50.00
$50.00
$50.00 - $50.00
$50.00

14x20x1 Glasfloss Air Filter Case Pack of 12

Glasfloss
Only 3 left!

The Glasfloss GDS disposable panel filter features an innovative, reinforced, “double strut” construction for excellent durability and performance ...

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$50.00 - $50.00
$50.00
$50.00 - $50.00
$50.00
Sold out
$72.00 - $72.00
$72.00
$72.00 - $72.00
$72.00

24x24x1 Air Filters Case Pack of 12

Glasfloss
Out of stock

The Glasfloss GDS disposable panel filter features an innovative, reinforced, “double strut” construction for excellent durability and performance ...

View full details
$72.00 - $72.00
$72.00
$72.00 - $72.00
$72.00
Sold out
$124.00 - $124.00
$124.00
$124.00 - $124.00
$124.00

21x21x1 Air Filters Case Pack of 12

Glasfloss
Only 4 left!

The Glasfloss GDS disposable panel filter features an innovative, reinforced, “double strut” construction for excellent durability and performanc...

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$124.00 - $124.00
$124.00
$124.00 - $124.00
$124.00
Sold out
$72.00 - $72.00
$72.00
$72.00 - $72.00
$72.00

16x24x2 Air Filters Case Pack of 12

Glasfloss
Out of stock

The Glasfloss GDS disposable panel filter features an innovative, reinforced, “double strut” construction for excellent durability and performance ...

View full details
$72.00 - $72.00
$72.00
$72.00 - $72.00
$72.00
Sold out
$78.00 - $78.00
$78.00
$78.00 - $78.00
$78.00

20x24x2 Air Filters Case Pack of 12

Glasfloss
Only 2 left!

The Glasfloss GDS disposable panel filter features an innovative, reinforced, “double strut” construction for excellent durability and performance ...

View full details
$78.00 - $78.00
$78.00
$78.00 - $78.00
$78.00
Sold out
$64.00 - $64.00
$64.00
$64.00 - $64.00
$64.00

16x25x2 Air Filters Case Pack of 12

Glasfloss
Out of stock

The Glasfloss GDS disposable panel filter features an innovative, reinforced, “double strut” construction for excellent durability and performance ...

View full details
$64.00 - $64.00
$64.00
$64.00 - $64.00
$64.00
Sold out
$64.00 - $64.00
$64.00
$64.00 - $64.00
$64.00

22x22x1 Air Filters Case Pack of 12

Glasfloss
Only 1 left!

The Glasfloss GDS disposable panel filter features an innovative, reinforced, “double strut” construction for excellent durability and performance ...

View full details
$64.00 - $64.00
$64.00
$64.00 - $64.00
$64.00
$73.00 - $73.00
$73.00
$73.00 - $73.00
$73.00

14x18x1 Air Filters Case Pack of 12

Glasfloss
Only 1 left!

The Glasfloss GDS disposable panel filter features an innovative, reinforced, “double strut” construction for excellent durability and performance ...

View full details
$73.00 - $73.00
$73.00
$73.00 - $73.00
$73.00
$50.00 - $50.00
$50.00
$50.00 - $50.00
$50.00

20x25x1 Air Filters Case Pack of 12

Glasfloss
Only 4 left!

The Glasfloss GDS disposable panel filter features an innovative, reinforced, “double strut” construction for excellent durability and performance ...

View full details
$50.00 - $50.00
$50.00
$50.00 - $50.00
$50.00
Sold out
$67.00 - $67.00
$67.00
$67.00 - $67.00
$67.00

20x24x1 Air Filters Case Pack of 12

Glasfloss
Out of stock

The Glasfloss GDS disposable panel filter features an innovative, reinforced, “double strut” construction for excellent durability and performance ...

View full details
$67.00 - $67.00
$67.00
$67.00 - $67.00
$67.00
Sold out
Sold out
$84.00 - $84.00
$84.00
$84.00 - $84.00
$84.00

20x30x1 Air Filters Case Pack of 12

Glasfloss
Out of stock

The Glasfloss GDS disposable panel filter features an innovative, reinforced, “double strut” construction for excellent durability and performance ...

View full details
$84.00 - $84.00
$84.00
$84.00 - $84.00
$84.00
Sold out
$67.00 - $67.00
$67.00
$67.00 - $67.00
$67.00

14x14x1 Air Filters Case Pack of 12

Glasfloss
Only 2 left!

The Glasfloss GDS disposable panel filter features an innovative, reinforced, “double strut” construction for excellent durability and performa...

View full details
$67.00 - $67.00
$67.00
$67.00 - $67.00
$67.00
$67.00 - $67.00
$67.00
$67.00 - $67.00
$67.00

18x18x1 Air Filters Case Pack of 12

Glasfloss
Only 2 left!

The Glasfloss GDS disposable panel filter features an innovative, reinforced, “double strut” construction for excellent durability and performance ...

View full details
$67.00 - $67.00
$67.00
$67.00 - $67.00
$67.00
$50.00 - $50.00
$50.00
$50.00 - $50.00
$50.00

12x20x1 Air Filters Case Pack of 12

Glasfloss
Only 4 left!

The Glasfloss GDS disposable panel filter features an innovative, reinforced, “double strut” construction for excellent durability and performanc...

View full details
$50.00 - $50.00
$50.00
$50.00 - $50.00
$50.00
$50.00 - $50.00
$50.00
$50.00 - $50.00
$50.00

15x20x1 Air Filters Case Pack of 12

Glasfloss
Only 3 left!

The Glasfloss GDS disposable panel filter features an innovative, reinforced, “double strut” construction for excellent durability and performanc...

View full details
$50.00 - $50.00
$50.00
$50.00 - $50.00
$50.00
Sold out
$59.00 - $59.00
$59.00
$59.00 - $59.00
$59.00

18x20x1 Air Filters Case Pack of 12

Glasfloss
Out of stock

The Glasfloss GDS disposable panel filter features an innovative, reinforced, “double strut” construction for excellent durability and performanc...

View full details
$59.00 - $59.00
$59.00
$59.00 - $59.00
$59.00
Sold out
$47.00 - $47.00
$47.00
$47.00 - $47.00
$47.00

10x20x1 Air Filters Case Pack of 12

Glasfloss
Only 4 left!

The Glasfloss GDS disposable panel filter features an innovative, reinforced, “double strut” construction for excellent durability and performanc...

View full details
$47.00 - $47.00
$47.00
$47.00 - $47.00
$47.00
$47.00 - $47.00
$47.00
$47.00 - $47.00
$47.00

10x10x1 Air Filters Case Pack of 12

Glasfloss
Only 2 left!

The Glasfloss GDS disposable panel filter features an innovative, reinforced, “double strut” construction for excellent durability and performance ...

View full details
$47.00 - $47.00
$47.00
$47.00 - $47.00
$47.00
Sold out
$60.00 - $60.00
$60.00
$60.00 - $60.00
$60.00

16x25x1 Air Filters Case Pack of 12

Glasfloss
Out of stock

The Glasfloss GDS disposable panel filter features an innovative, reinforced, “double strut” construction for excellent durability and performanc...

View full details
$60.00 - $60.00
$60.00
$60.00 - $60.00
$60.00
Sold out
Sold out
$44.00 - $44.00
$44.00
$44.00 - $44.00
$44.00

16x20x1 Air Filters Case Pack of 12

Glasfloss
Out of stock

The Glasfloss GDS disposable panel filter features an innovative, reinforced, “double strut” construction for excellent durability and performance ...

View full details
$44.00 - $44.00
$44.00
$44.00 - $44.00
$44.00
Sold out
Sold out
$60.00 - $60.00
$60.00
$60.00 - $60.00
$60.00

20x20x1 Air Filters Case Pack of 12

Glasfloss
Out of stock

The Glasfloss GDS disposable panel filter features an innovative, reinforced, “double strut” construction for excellent durability and performance ...

View full details
$60.00 - $60.00
$60.00
$60.00 - $60.00
$60.00
Sold out