Perfect Companions
Description
MRCOOL 5th Generation 12k 115V Advantage Air Handler
Imagine a home where comfort reigns supreme, and your conscience rests easy knowing you've made an eco-friendly choice. The 5th Generation MRCOOL® 12k 115V Advantage Air Handler delivers just that. With its revolutionary R454B refrigerant, you're not just getting powerful heating and cooling; you're actively reducing greenhouse gas emissions and lowering your carbon footprint. Experience whisper-quiet operation and consistent, balanced comfort without the hassle of ductwork, making it a cost-effective and efficient solution for any room. Take control of your home's climate from anywhere with built-in Wi-Fi, and enjoy peace of mind with MRCOOL’s robust warranty. This is more than an air handler; it's a commitment to a comfortable, sustainable future.
Why Choose MRCOOL at Generation Eco Store?
At Generation Eco Store, we believe in empowering your sustainable choices. We carefully select brands like MRCOOL that align with our values of efficiency and environmental responsibility. When you choose the MRCOOL Advantage Air Handler from us, you're not just buying a product; you're investing in a greener future with the support of a team dedicated to eco-conscious living.
| Specification | Values |
|---|---|
| Refrigerant | R-454B |
| Condenser | Gold Fin® (Corrosion Resistant) |
| Smart Control | Wi-Fi, Google Assistant & Amazon Alexa compatible |
| Features | Timer Mode, Refrigerant Leakage Detection, Follow Me® Function |
| Certifications | AHRI certified, NEEP ccASHP Listed, CEE Tier1 - North |
Specifications & Dimension
What's in the Box?
- Installation Manual
- Owner's Manual
- Remote Control Manual
- 1x Mounting Plate + Cardboard Template
- 5x Clip Anchor
- 5x Mounting Plate Fixing Screw
- 1x Remote Control
- 2x Fixing screw for Remote Controller Holder (Optional)
- 1x Remote Control Holder (Optional)
- 2x AAA Battery
- 1x Air Freshening Filter
- 1x Seal
- 1x Drain Joint (for cooling & heating models)
- 2x Copper nut Note: Used to connect the connecting pipes between indoor and outdoor units.
Guides & More
Shipping Policy
- Free & Fast Shipping
We offer free shipping on most MRCOOL DIY Air Handlers orders across the lower 48 states, using the most reliable freight partners. Orders typically ship within 5 business days, with tracking provided within 24 hours of dispatch. - Tracking & Delivery Scheduling
You’ll receive an order confirmation email immediately after placing your order. Tracking details are usually shared within 3–5 business days. Please review your shipping address carefully—corrections after shipment may incur a fee. - Important Shipping Notes
Ensure your location can accommodate freight deliveries. Additional charges may apply for access-restricted areas, remote locations, or deliveries requiring special transport (e.g., ferry or plane).
See our full Shipping Policy here
Return Policy
- Hassle-Free Returns
We offer a 30-day return window from the date you receive your item. Items must be unused, in original packaging, and accompanied by proof of purchase. Some items may incur a 15–25% restocking fee, especially larger freight-shipped products. Cancellations made before shipping will incur a 3-5% processing fee. - Damaged or Special Orders
Please report any damages within 24 hours of delivery. Installed or opened items may not be returnable. Select brands such as Victron and Pytes may be non-returnable based on manufacturer policies.
See our full Return Policy here
"What we'd tell a friend"

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Eco-Friendly Comfort
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R454B refrigerant enhances energy efficiency and reduces greenhouse gas emissions for a greener home.
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Easy Remote Control
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Built-in Wi-Fi and smart app support allow for convenient temperature adjustments from anywhere.


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Reliable & Durable
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Enjoy peace of mind with a strong warranty and corrosion-resistant Gold Fin® condenser for long-lasting use.
See it in Action
Have a Question? We Have Answers
What is the main benefit of the R454B refrigerant used in this air handler?
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The R454B refrigerant is an eco-friendly choice that enhances energy efficiency, reduces greenhouse gas emissions, and lowers Global Warming Potential (GWP).
What smart features does the MRCOOL Advantage Air Handler offer?
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It has built-in Wi-Fi for remote control and programming, and its Smart HVAC Controller Module and App support Google Assistant and Amazon Alexa.
What is the warranty information for the MRCOOL Advantage Series?
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The Advantage Series offers a 1-year warranty on parts, 2 years on the compressor, and 1 year on the remote control with registration, with the option for a Limited Lifetime warranty through the MRCOOL Care Program.
What is the warranty on Air Handlers?
Warranty for product varies based on the brand and the product. For some of the warranties, https://generationecostore.com/pages/warranty view OEM warranty policy. For any questions, please reach out to us at hello@generationecostore.com
Can I return the Air Handlers if I'm not satisfied?
We offer a 30-day return window from the date you receive your item. To be eligible for a return, the item must be unused, in its original packaging, and include proof of purchase.
Your Satisfaction is Our Priority
Secure Shopping
Our store uses SSL encryption to ensure your payment information is always secure
Free Shipping
Free shipping on orders over $500 (exceptions apply), get your purchase delivered quickly and hassle-free
Warranties
We stand behind the quality of our products and are backed by manufacturers' warranties
Customer Support
Our support team is available to assist you with any questions or concerns you have