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Buy 4 Mini-Splits, Get 1 FREE!

Get a FREE Mini-Split when you buy 4!
Use code MSPLIT-IN for indoor mini-splits and code MSPLIT-ODU for outdoor mini-splits.
Offer valid until June 26.

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R2D2 Air Handler

Introducing the CBK43UHET!

Compact by design. Built to deliver.

R2D2 Air Handler

Introducing the CBK43UHET!

Compact by design. Built to deliver.

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Lennox M30

Buy 5 M30 Thermostats and Get 1 FREE!

Available While Supplies Last.

Use Promo Code FREE-M30

Buy Now

Buy 5 M30 Thermostats

and Get 1 FREE!

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M30 Thermostat Offer

Lennox FREE RDS Kit

Get a FREE RDS Kit!

Purchase an ML180E, ML180V, ML193E, ML196E, ML296V, EL180NE, EL195NE, EL196E, EL280NE, EL280XE, EL280E, EL297XE, EL297V, SL280V, SL297V, or SLP99V Furnace and get an RDS Kit for FREE!

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SPRING SPIF PROMOTION

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March 9 – June 12

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Products that could interest you

Filtration Group 10391, Aerostar Series 400, Pleated Air Filter 24 x 24 x 2 Inch, MERV 8

Filtration Group 10391, Aerostar Series 400, Pleated Air Filter 24 x 24 x 2 Inch, MERV 8

Cat # :Y5323
Model/Part # :10391

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Filtration Group 10390, Aerostar Series 400, Pleated Air Filter 25 x 20 x 2 Inch, MERV 8

Filtration Group 10390, Aerostar Series 400, Pleated Air Filter 25 x 20 x 2 Inch, MERV 8

Cat # :Y5322
Model/Part # :10390

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Filtration Group 10388, Aerostar Series 400, Pleated Air Filter 20 x 20 x 2 Inch, MERV 8

Filtration Group 10388, Aerostar Series 400, Pleated Air Filter 20 x 20 x 2 Inch, MERV 8

Cat # :Y5320
Model/Part # :10388

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Healthy Climate HCF16-11, Disposable Pleated Box Filter 25 x 16 x 5 Inch, MERV 11

Healthy Climate HCF16-11, Disposable Pleated Box Filter 25 x 16 x 5 Inch, MERV 11

Cat # :X6670
Model/Part # :HCF16-11

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Filtration Group 10386, Aerostar Series 400, Pleated Air Filter 25 x 16 x 2 Inch, MERV 8

Filtration Group 10386, Aerostar Series 400, Pleated Air Filter 25 x 16 x 2 Inch, MERV 8

Cat # :Y5317
Model/Part # :10386

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Filtration Group 10384, Aerostar Series 400, Pleated Air Filter 20 x 16 x 2 Inch, MERV 8

Filtration Group 10384, Aerostar Series 400, Pleated Air Filter 20 x 16 x 2 Inch, MERV 8

Cat # :Y5315
Model/Part # :10384

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Healthy Climate HCF20-11, Disposable Pleated Box Filter 25 x 20 x 5 Inch, MERV 11

Healthy Climate HCF20-11, Disposable Pleated Box Filter 25 x 20 x 5 Inch, MERV 11

Cat # :X6673
Model/Part # :HCF20-11

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Filtration Group 10389, Aerostar Series 400, Pleated Air Filter 24 x 20 x 2 Inch, MERV 8

Filtration Group 10389, Aerostar Series 400, Pleated Air Filter 24 x 20 x 2 Inch, MERV 8

Cat # :Y5321
Model/Part # :10389

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R-410A Refrigerant, 25 Lb Cylinder

R-410A Refrigerant, 25 Lb Cylinder

Cat # :80N84
Model/Part # :R410A -25lb

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Lennox 76N02, Level Wound Rolled Copper Tubing, 7/8

Lennox 76N02, Level Wound Rolled Copper Tubing, 7/8", Smooth ID, Wall Thickness .018 - .065"

Cat # :76N02

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Lennox S40 Smart Thermostat, Touchscreen, Communicating, WiFi, Programmable, 3 Heat/2 Cool

S40, Touchscreen Smart Thermostat

Cat # :22V24
Model/Part # :S40

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Filtration Group 10387, Aerostar Series 400, Pleated Air Filter 24 x 18 x 2 Inch, MERV 8

Filtration Group 10387, Aerostar Series 400, Pleated Air Filter 24 x 18 x 2 Inch, MERV 8

Cat # :Y5319
Model/Part # :10387

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Filtration Group 10420, Aerostar Series 400, Pleated Air Filter 16 x 16 x 2 Inch, MERV 8

Filtration Group 10420, Aerostar Series 400, Pleated Air Filter 16 x 16 x 2 Inch, MERV 8

Cat # :Y5314
Model/Part # :10420

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Filtration Group 10375, Aerostar Series 400, Pleated Air Filter 20 x 20 x 1 Inch, MERV 8

Filtration Group 10375, Aerostar Series 400, Pleated Air Filter 20 x 20 x 1 Inch, MERV 8

Cat # :Y5484
Model/Part # :10375

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Lennox 67K6501, Relay, Flange Mount, DPDT, 24 VAC Coil, 15 Amp Max, 1/4

Lennox 67K6501, Relay, Flange Mount, DPDT, 24 VAC Coil, 15 Amp Max, 1/4" QC Tabs

Cat # :67K65
Model/Part # :23767-70

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Healthy Climate HCF14-11, Disposable Pleated Box Filter 20 x 20 x 5 Inch, MERV 11

Healthy Climate HCF14-11, Disposable Pleated Box Filter 20 x 20 x 5 Inch, MERV 11

Cat # :X0585
Model/Part # :HCF14-11

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Lennox 76N00, Level Wound Rolled Copper Tubing, 3/8

Lennox 76N00, Level Wound Rolled Copper Tubing, 3/8", Smooth ID, Wall Thickness .011 - .065"

Cat # :76N00

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Healthy Climate HCF16-16, Disposable Pleated Box Filter 25 x 16 x 5 Inch, MERV 16

Healthy Climate HCF16-16, Disposable Pleated Box Filter 25 x 16 x 5 Inch, MERV 16

Cat # :X6672
Model/Part # :HCF16-16

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Filtration Group 10385, Aerostar Series 400, Pleated Air Filter 24 x 16 x 2 Inch, MERV 8

Filtration Group 10385, Aerostar Series 400, Pleated Air Filter 24 x 16 x 2 Inch, MERV 8

Cat # :Y5316
Model/Part # :10385

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Healthy Climate HCF20-16, Disposable Pleated Box Filter 25 x 20 x 5 Inch, MERV 16

Healthy Climate HCF20-16, Disposable Pleated Box Filter 25 x 20 x 5 Inch, MERV 16

Cat # :X6675
Model/Part # :HCF20-16

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Maintenance Notice

Lennox Warranty Claims will be unavailable from 7pm to 12am CST on Apr 10, 2026. Claim submissions will be temporarily disabled.

Important Warranty Note

Our quick coverage lookup tool is currently under construction. In the meantime, you can find your product's warranty information at lennox.com/residential/owners/assistance/warranty/

Important Warranty Note

When submitting a claim for parts 27A02 or 27A03, please file the claim as an accessory and include the model and serial number of the Furnace or Air Handler in the notes section.

*Notice to HVACR Licensees Pertaining to HB 1162 (2025)

Dear HVACR Licensee,

The Maryland General Assembly has enacted House Bill 1162 (Chapter 386, 2025), which introduces new requirements related to the sale and purchase of heating, ventilation, air–conditioning, and refrigeration (HVACR) equipment. This law takes effect on October 1, 2025.

Key Provisions:

Sales Restricted to Licensed Professionals: HVACR equipment may only be sold to an individual or a business who:

holds or employs a holder of a Master, Master Restricted, or Limited License issued by the State Board of Heating, Ventilation, Air–Conditioning, and Refrigeration Contractors, or employ an individual who holds one of these licenses;
operates a business that resells equipment to licensed HVACR professionals; or
falls under a statutory exemption set forth in Maryland Annotated Code, Business Regulation Article § 9A–103.

Penalties for Violations:

First violation: Civil penalty up to $1,000. Maryland Annotated Code, Business Regulation Article §§ 9A–501.1 and 9A-505.
Second or subsequent violations: Civil penalty up to $5,000. Id.

What This Means for Licensees:

Ensure your license is current and valid so that you can continue to purchase HVACR equipment without interruption.
Be prepared to confirm your license status when purchasing HVACR equipment.

This legislation takes effect on October 1, 2025.

For questions, please contact the State Board of Heating, Ventilation, Air–Conditioning, and Refrigeration Contractors at DLOPLHVACR-LABOR@maryland.gov.

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