MRCOOL DIY® 5th Gen 18,000 BTU Multi-Zone Mini Split Condenser 230V, DIY-MULTI3-18HP230D-O
MRCOOL DIY® 5th Gen 18,000 BTU Multi-Zone Mini Split Condenser 230V, DIY-MULTI3-18HP230D-O is backordered and will ship as soon as it is back in stock.
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Delivery and Shipping
Delivery and Shipping
We offer fast and reliable shipping across the continental U.S., with free shipping available on most orders (exclusions may apply based on brand and product type). Orders are typically processed within 1–2 business days and transit time is usually 4–7 business days. Larger items may ship via freight and require a scheduled curbside delivery. Please ensure your contact details are accurate at checkout. For questions about delivery timelines, shipping eligibility, or special requests, feel free to contact us directly. See Policy.
Do You Offer Financing?
Do You Offer Financing?
Shop Pay + After Pay - Choose the product you desire the most now and pay over time using Shop Pay / After Pay. Select your monthly payments and have your product delivered with no additional fees.
ACORN + APPROVE Financing - For larger purchase and businesses, ACORN and APPROVE offers flexible financing designed around their goals. Complete a 60-second application and connect with leading lenders—no effect on your credit score.
Price Match Guarantee
Price Match Guarantee
We’re committed to offering the best online prices—if you find a lower price from an authorized retailer, we’ll beat it. Our 100% Price Beat Guarantee excludes promotions, auction sites, and exchanges, and factors in item price, tax, and shipping. For price match inquiries, contact us at (833) 932-9683
Introducing the new 5th Gen MRCOOL® DIY® multi-zone mini split condenser. Save money with its high SEER2 and HSPF2-4 ratings. Install easily with pre-charged Quick Connect® line sets. Personalize and control with the Smart HVAC app. Includes a 7-year compressor warranty and 5-year parts warranty, plus Lifetime Replacement with enrollment in the MRCOOL® Care Program. Get ultimate comfort with DIY®.
- DIY Installation: Easy, tool-free setup with no prior experience required.
- DIY® QuickConnect® Line Set: Pre-charged with R-454B refrigerant for quick and vacuum-free installation.
- Environmentally Friendly Refrigerant: R-454B refrigerant has a lower Global Warming Potential (GWP) than older refrigerants like R-410A, reducing environmental impact while improving energy efficiency.
- DIYPRO® Cable: Eliminates the need for electrical conduit, offering enhanced durability against outdoor elements and wildlife.
- Gold Fin® Condenser: Provides corrosion resistance for coastal homes, ensuring long-lasting performance.
- Industry-Leading Warranty: Limited lifetime warranty, 7-year compressor warranty, and 5-year parts warranty.
- Certified Quality: Intertek listed 5031495 for reliable performance and safety.









