"THE" Highest Quality HVAC Supplier for McAllen Tx

MRCOOL Mini-Splits Provide Ductless Home HVAC

Control your MRCOOL Advantage mini-split AC system from anywhere with the smartphone app. Available for both Apple and Android devices.

MRCOOL Central & Universal Cooling and Heating

The Universal series condenser is quiet! How does it compare to conventional condensers? MRCOOL is less than half as loud as 55dB(a).

Heavy Duty, Durable, and Aesthetically Pleasing Case

Outdoor equipment needs to stand up to the elements and MRCOOL products are designed to protect from impacts such as hail damage.

Ralco Air Supplies MRCOOL HVAC Units & Accessories

Mini-Split HVAC DIY Kits

Mini-Splits allow you to have multiple zones of climate control in your home, keeping it cooler and saving you money

Mini -Split Solutions

AC Condensers & Air Handlers

High quality, built to last AC condensers and air handler kits. Corrosion resistant coils and pre-charged with R410A!

Condenser Combos

Air Handler Heat Kits 12k & 24k BTU

Incredibly efficient Air Handlers at the best value for the money.  Our Universal units allow variable tonnage

Ait Handler Heating

Mr Cool HVAC Accessories

Need accessories to install your system or improve it?  We have what you need to make this DIY system easy.

Parts & Accessories
  • Best Prices in the Rio Grande Valley GUARANTEED

    If you find a Mr. Cool system locally at a publicly offered price for less, we will match that and still give you our world class service. (offer must be shown in advertisements and based in legitimacy.) 

  • Easy DIY AC Units - Pre-Charged Frion!

    Frion is pre-charged.  So once you get your unit hung on the wall and the Air Handler in place, just follow the steps to hook in your tubing and there is no "charging" needed.  You don't have to be a trained technician to install.  If you are an installer, these units will SAVE YOU TIME and give you a better ROI.

  • Professional Installation Available

    Although Ralco Air is not a service provider at our core, we can help link you to an HVAC technician  If you need one to install a system for you. We know just the right people to make it as easy as possible.  If you are an HVAC technician and would like to buy from us, contact us for details.  

  • Residential and Commercial Units

    Our Mr. Cool Units a can service different offices and commercial buildings using zone climate control as well as they can homes and apartments. 

  • Cut Out The Middleman and SAVE $$$

    Buy Direct from us and eliminate the extra mark-up you normally pay.  No other company in the Valley can get you the Mr. Cool unit you need at this kind of price. Have your technician quote you on the work alone and tell him "I can buy the unit."  

We recognize that many homeowners want to save time and money! Ralco Air does exactly that - We help you find the best HVAC solution for your home.

MRCOOL® products must be installed in accordance with all applicable local, state and federal codes and regulations.  Unless explicitly stated otherwise, installation must be completed by a licensed / certified HVAC technician.  ALL electrical connections to a power source must be performed by a licensed electrician and comply with local, state and federal electrical codes and regulations. We support DIY installations but safety ALWAYS comes first.

The best DIY mini-split solution we sell is the MRCOOL 3rd Generation Energy Star HVAC unit. Perfect for many homes, garages, offices, and even more spaces, this efficient, high quality product comes pre-charged with coolant, includes leakage detection, allows smartphone app controls, will auto restart if a power outage should occur, is corrosion resistant, is energy start certified, offers low ambient cooling, AND you can install it yourself. An absolutely amazing product!

Get a Free HVAC Quote Today!

Contact Us

Testimonials

MIKE T.

I'm pretty handy, so getting a DIY unit was perfect.  I saved by installing it myself, and it was easier than I thought it would be. 

SHANNON W.

I'm saving so much $$$ with my mini-splits.  The room gets cooler than ever before also.  I HIGHLY recommend it.
Share by: