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The MRCOOL DIY 12K BTU 5th Generation Multi-Zone Air Handler (230V) is an indoor wall-mounted unit designed for use with compatible MRCOOL DIY 5th Generation Multi-Zone Outdoor Condensers. This air handler delivers reliable year-round heating and cooling while allowing you to customize a complete multi-zone HVAC system for your home or business.
Perfect for bedrooms, living rooms, home offices, guest rooms, and other medium-sized spaces, this indoor unit features built-in WiFi connectivity, quiet operation, and energy-efficient inverter technology to provide dependable comfort throughout every season.
Please Note: This product is an indoor air handler only and must be paired with a compatible MRCOOL DIY 5th Generation Multi-Zone Outdoor Condenser. It is not a complete HVAC system.
✔ 12,000 BTU Indoor Air Handler
✔ Designed for MRCOOL DIY 5th Generation Multi-Zone Systems
✔ Compatible with Select MRCOOL DIY Multi-Zone Outdoor Condensers
✔ Built-in WiFi Connectivity
✔ Compatible with Amazon Alexa & Google Assistant
✔ Variable-Speed Inverter Technology
✔ Quiet Indoor Operation
✔ Heating & Cooling Capability
✔ Washable Air Filter
✔ Modern Wall-Mounted Design
✔ Manufacturer Warranty Included
Outdoor condenser, line set, communication cable, and installation accessories are sold separately or included with complete system packages.
Perfect for:
This indoor unit is designed for use with compatible MRCOOL DIY 5th Generation Multi-Zone Outdoor Condensers.
Before purchasing, please verify compatibility with your existing or planned MRCOOL DIY Multi-Zone system.
When you shop with Arctic Air Supply, you're purchasing from an Authorized MRCOOL Dealer committed to providing genuine MRCOOL products, competitive pricing, and exceptional customer service.
✔ Authorized MRCOOL Dealer
✔ Genuine MRCOOL Products
✔ Manufacturer Warranty Included
✔ Free Freight Shipping
✔ Secure Checkout
✔ Responsive U.S. Customer Support
Whether you're replacing an existing indoor unit or expanding your MRCOOL DIY Multi-Zone system, we're here to help you find the right solution with confidence.
Most orders are processed within 1–3 business days and typically arrive within 5–10 business days via freight carrier.
Tracking information will be provided once your order ships.
Please inspect all shipments upon delivery and report any visible shipping damage immediately.
Have questions about compatibility or choosing the correct MRCOOL air handler?
Our knowledgeable team is happy to help.
Questions before you order? Contact us at support@arcticairsupply.com — we typically respond within a few hours.
In Stock – Ready to Ship
Shipped Directly from Manufacturer
Secure Checkout
Tracking Provided After Shipment
Order Processed in 1–3 Business Days