Filterbuy Promo & Discount Code October 2025

About Filterbuy

Filterbuy is an American-made air filter company founded in 2012 with a mission to provide "Better Air for All" by manufacturing and selling high-quality air filters directly to consumers and businesses. Beyond air filters, the company has expanded to include HVAC services, such as installation and maintenance, and B2B solutions for commercial clients. The company emphasizes American manufacturing and is committed to improving indoor air quality through both its products and services.

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Filterbuy's Categories

Home & Gardens

All (9) Codes (0) Deals (9)

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70% Off When You Buy 12 or More Air Filters

Get 70% Off When You Buy 12 or More Air Filters at filterbuy

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No Code

Terms & Conditions

This code has limited usages, and has been used 0 times.

Cannot be used in conjunction with any other offer.

All brands reserve the right to remove any offer without giving prior notice.

Available whilst stocks lasts.

For full Terms & Conditions please see website.

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Fast, Free shipping on All Orders

Get Fast, Free shipping on All Orders at filterbuy

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No Code

Terms & Conditions

This code has limited usages, and has been used 0 times.

Cannot be used in conjunction with any other offer.

All brands reserve the right to remove any offer without giving prior notice.

Available whilst stocks lasts.

For full Terms & Conditions please see website.

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57% Off 8 Pleated Air Filter

Get 57% Off 8 Pleated Air Filter at filterbuy

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No Code

Terms & Conditions

This code has limited usages, and has been used 0 times.

Cannot be used in conjunction with any other offer.

All brands reserve the right to remove any offer without giving prior notice.

Available whilst stocks lasts.

For full Terms & Conditions please see website.

Verified

54% Off 4” Air Filters

Get 54% Off 4” Air Filters at filterbuy

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No Code

Terms & Conditions

This code has limited usages, and has been used 0 times.

Cannot be used in conjunction with any other offer.

All brands reserve the right to remove any offer without giving prior notice.

Available whilst stocks lasts.

For full Terms & Conditions please see website.

Verified

52% Off 10x10x2 Air Filters

Get 52% Off 10x10x2 Air Filters at filterbuy

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No Code

Terms & Conditions

This code has limited usages, and has been used 0 times.

Cannot be used in conjunction with any other offer.

All brands reserve the right to remove any offer without giving prior notice.

Available whilst stocks lasts.

For full Terms & Conditions please see website.

Verified

42% Off Honeywell FC40R1078

Get 42% Off Honeywell FC40R1078 at filterbuy

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No Code

Terms & Conditions

This code has limited usages, and has been used 0 times.

Cannot be used in conjunction with any other offer.

All brands reserve the right to remove any offer without giving prior notice.

Available whilst stocks lasts.

For full Terms & Conditions please see website.

Verified

5% Off Every Order

Get 5% Off Every Order at filterbuy

Get Deal

No Code

Terms & Conditions

This code has limited usages, and has been used 0 times.

Cannot be used in conjunction with any other offer.

All brands reserve the right to remove any offer without giving prior notice.

Available whilst stocks lasts.

For full Terms & Conditions please see website.

Verified

$25 Off Sale Items

Get $25 Off Sale Items at filterbuy

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No Code

Terms & Conditions

This code has limited usages, and has been used 0 times.

Cannot be used in conjunction with any other offer.

All brands reserve the right to remove any offer without giving prior notice.

Available whilst stocks lasts.

For full Terms & Conditions please see website.

Verified

10% Off With Email Sign Up

Get 10% Off With Email Sign Up at filterbuy

Get Deal

No Code

Terms & Conditions

This code has limited usages, and has been used 0 times.

Cannot be used in conjunction with any other offer.

All brands reserve the right to remove any offer without giving prior notice.

Available whilst stocks lasts.

For full Terms & Conditions please see website.