MRCOOL Mrcool Signature Split Air Handler up to 14.5 SEER MAHM042CTA — front hero view

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Mrcool Signature Split Air Handler up to 14.5 SEER MAHM042CTA

Name: Mrcool Signature Split Air Handler up to 14.5 SEER MAHM042CTA
Brand: MRCOOL
SKU: MAHM042CTA
Price: 1284.00 USD
Availability: InStock

★★★★★

Iron Line Verified

Authorized Dealer: MRCOOL

Official Partner

IN STOCK & READY TO SHIP

SKU: MAHM042CTA

Price:

$1,284.00

Quantity:

Estimated delivery: 2–13 business days Order before 2:00 PM ET. Handling takes 1–3 business days and transit 1–10 business days. Tracking is emailed when it ships.

Pay over time with Shop Pay Choose Shop Pay at checkout. Subject to approval.

Authorized MRCOOL dealer
A+ customer service
Multiple financing options
We pay sales tax (IL excluded)

Talk to a MrCool expert: (888) 308-5580 Mon–Sun, 7:00 AM–7:00 PM Central

We pay your sales tax! (IL excluded) 📦

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Tonnage: 3.5
Cooling Capacity: 42000 BTU
Warranty: 5 Year Parts Warranty

Order Placed

Ships Out

Delivered

*Please Note: This timeline is an estimate. Certain products may require an additional 1 week for manufacturing. Please speak with your sales rep, Matthew, for official details and confirmation before placing your order.

CALL US FOR THE MOST ACCURATE AND COMPETITIVE LTL SHIPPING RATE, (888) 308-5580

Get Questions Answered Fast

Experience: 20+ Years B2B • Origin: US-Based Support

EXPRESS SHIPPING

Most orders process in 1-3 days. Yes, even if it weights 400lb

Hassle-Free Returns

No restocking fees. Ever.

Manufacturer Warranty

Fully backed by the brands you trust.

Dedicated Rep Mathew

Speak to a US-Based Equipment Specialist: (888) 308-5580

Flexible Financing

Get Upto 60 Months Financing

Key Information

Order Cutoff Time: 2:00 PM EST
Order Handling Time: 1–3 business days (Monday–Friday)
Transit Time: 1–7 business days (Monday–Friday)
Total Estimated Delivery Time: 3–11 business days (Monday–Friday)
Shipping Availability: Free Shipping On some Items In The Contiguous United States only

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Our tool specialists are ready to help you find the perfect solution for your specific application.

Why buy from Iron Line Tools

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Talk to a real expert right awayCall (888) 308-5580 now. A real person answers 7 AM–7 PM CT, 7 days a week.

We pay your sales taxSales tax is on us (IL excluded).

Pay over timePay over time with Shop Pay Installments at checkout, subject to approval. Questions? Call (888) 308-5580, Mon–Sun 7:00 AM–7:00 PM Central.

MRCOOL DIY questions, answered

Can I really install an MRCOOL DIY mini-split myself?

Yes. MRCOOL designed its DIY series for homeowner installation, with no special tools or training needed. The line sets come pre-charged with refrigerant and use Quick Connect® fittings, so there's no vacuum pump or refrigerant handling. Electrical hookup should follow your local code, and many areas require a licensed electrician for that part.

What size mini-split do I need?

MRCOOL's general guide for wall-mounted units with 8 ft ceilings: 6K BTU up to about 200 sq ft, 9K up to 400, 12K up to 550, 18K up to 800, 24K up to 1,050 and 36K up to 1,550. Insulation, windows, ceiling height and climate all change the answer, and MRCOOL recommends a professional load calculation for best results.

Do I need 115V or 230V?

In the 5th Gen DIY single-zone line, the 9K and 12K run on 115V. The 18K, 24K and 36K need 208/230V. Check the spec sheet on each product page for the circuit size.

Single zone or multi-zone?

A single-zone system has one indoor unit for one room. A multi-zone system runs two to five indoor units from one outdoor unit, so each room can be set to its own temperature. See our multi-zone systems, or call us and we'll help size each room.

What warranty comes with it?

The warranty comes from MRCOOL. For the 5th Gen DIY condensers, MRCOOL lists a base warranty of 5 years on parts and 7 years on the compressor. See MRCOOL's warranty terms for registration and installation requirements.

How long does shipping take?

Orders placed before 2:00 PM ET are handled in 1–3 business days, and transit takes 1–10 business days, so most orders arrive within 2–13 business days. Shipping cost is shown at checkout. You'll get tracking by email as soon as it ships. See our shipping policy.

Can I return it?

Yes, and we don't charge restocking fees. Contact us first at info@ironlinetools.com or (888) 308-5580, and see our refund policy for the details.

Do you offer financing?

Pay over time with Shop Pay Installments at checkout, subject to approval. Questions? Call (888) 308-5580, Mon–Sun 7:00 AM–7:00 PM Central.

CAPITAL ACCESS

EQUIPMENT FINANCING

AVAILABLE

Preserve cash flow with up to 60 month financing.

Job Site Proven

Trusted by Facilities and manufacturing centers

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Frequently Asked Questions for MRCOOL

The MRCOOL MAHM042CTA is a 3.5-ton split air handler.

This air handler supports systems rated up to 14.5 SEER.

This unit's cabinet has a baked polyester paint finish over galvanized steel to resist corrosion.

Yes, this unit has an antimicrobial treated drain pan to resist mold and mildew growth.

This unit uses foil-faced insulation for enhanced indoor air quality.

What a privilege to help great companies #getworkdone:

OUTFITTING FACILITIES FROM COAST TO COAST

Iron Line Tools provides the critical equipment that industrial and manufacturing operations rely on to execute at the highest level.

Field Reports

Brand	MRCOOL
Model	MAHM042CTA
Tonnage	3.5
Airflow (CFM)	1400
Cooling Capacity (BTU)	42000
Voltage	208-230
Phase	1
Refrigerant	R-410A
Configuration	Multi-Position
Warranty	5 Year Parts Warranty
Net Weight (lbs)	168.00

Mrcool Signature Split Air Handler up to 14.5 SEER MAHM042CTA

Estimated Delivery Timeline