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Shop Nu-Calgon

Gustave A. Larson has been a renowned wholesale HVACR distributor for more than 80 years, serving contractors across the Midwest, the Plains, and the Mountain States. We are a family-operated company that partners with some of the biggest names in the industry, including Nu-Calgon. Whether you are on the lookout for iWave air purifier distributors or want to find out what else Nu-Calgon has to offer, you’ve come to the right place.

Discover the excellence of Nu-Calgon

Headquartered in St. Louis, Missouri, Nu-Calgon is a long-standing company that has been marketing and distributing top-quality HVACR products for the past 70 years. Their offerings consist of specialized heating, cooling, refrigeration, and IAQ products, including coil cleaners, air purifiers, leak sealants, refrigeration oils, and many more.

Nu-Calgon is known for : 

  • Wide range of high-quality HVACR products, including efficient iWave air purifiers, odor neutralizers, aerosol products, and much more. 
  • Carefully tested chemical products for IAQ, heating, cooling, refrigeration & insulation that meet the highest standards of quality, safety, and eco-friendliness. 
  • Convenient and reliable parts and accessories for HVACR contractors and Nu-Calgon wholesale distributors.

Why become a Gustave A. Larson partner?

Here’s why we’re your go-to choice if you’re looking for a Nu-Calgon distributor:

Making it Easy

Working with GA Larson is simple, streamlined, and enjoyable. Each aspect of our service is as simple as it can be, whether it's at the counter, on our website, or in our training rooms.

Setting a New Standard

We are fully dedicated to providing our customers with tailored and dependable services that meet their every need. We take a personalized approach to making your business thrive.

For us, it’s personal

We believe that every business relationship should be built on trust and mutual respect. We are known for creating lasting professional bonds with all of our HVACR contractors.


Interested in learning more about the Nu-Calgon iWave purifier and the rest of their products?
Larson has branches in these states:

  • Colorado
  • Idaho
  • Illinois
  • Indiana
  • Iowa
  • Kansas
  • Kentucky
  • Michigan
  • Minnesota
  • Nebraska
  • Nevada
  • New Mexico
  • North Dakota
  • South Dakota
  • Utah
  • Wisconsin
  • Wyoming

Explore specialty Nu-Calgon products

Nu-Calgon is a well-known name in the indoor air quality department, bringing specialized products to both residential and commercial HVACR contractors. With 32 factory sales experts located across the U.S. and Canada, the brand boasts years of industry experience, as well as a dependable, customer-oriented approach. Whether you’re interested in their iWave-R air purifier, mini-split care kits, gel tabs, or odor neutralizers, make sure to give us a call.

We bring you the Nu-Calgon iWave-C air purifier and more

Gustave A. Larson is your best option if you are interested in checking out the Nu-Calgon offering of industry-leading air purifiers. Their well-known bi-polar ionization purifier, the iWave- C, offers unrivaled ionization output and capabilities, effectively killing bacteria, viruses, and mold and ensuring the safety and freshness of any residential or commercial space. The device is also highly effective for reducing bad odors, smoke, allergens, and static electricity.

Want to join the Gustave A. Larson contractor team?

Shop Nu-Calgon

Frequently Asked Questions

  • What Nu-Calgon products do you supply?

    Gustave A. Larson is one of the leading Nu-Calgon distributors in the country, offering the best of their indoor air quality product selection. Whether you are an HVAC contractor interested in their i-Wave R or C air purifier, PurCool tablets, CleanAir liquid formulas, or any other IAQ product, make sure to reach out to us for more information.

  • What is Nu-Calgon iWave-R?

    The Nu-Calgon iWave-R air purifier is an industry-standard self-cleaning, bi-polar ionization generator characterized by a wide range of cutting edge features: 

    • Patented design that enables efficient self-cleaning and consistent performance 
    • Needlepoint ionization that keeps indoor air germ, smoke, and odor-free 
    • Simple installation on a wide range of AC systems 
    • Universal voltage and magnet mounting 
    • Minimal maintenance requirements  
  • How does the Nu-Calgon iWave R air purifier work?

    Owing to its advanced needlepoint bi-polar ionization technology, the iWave-R air purifier is highly effective at purifying indoor air by killing bacteria, mold, and viruses in AC coils and the living space. 

    The purifier produces more than 160 million ions/cc per polarity, which is a figure that leaves all other ionizer products in the dust. It achieves excellent results by relying on its patented self-cleaning design which includes a programmable cycle for cleaning the emitter brushes. To this day, this Nu-Calgon air purifier has been installed in more than 200,000 applications across the globe.

  • What are the advantages of Nu-Calgon air purifiers?

    Nu-Calgon offers a wide range of iWave air purifiers, all of which bring unique, industry-leading features. Whether it’s the iWave-C air purifier or the iWave-R air purifier model, their products bring the following perks: 

    • Low maintenance requirements: unlike other ionizer technologies, the Nu-Calgon iWave air purifier series requires very little maintenance and won’t require replacement parts in just a year or two after the installation. 
    • Patented self-cleaning design: the purifier features an advanced programmable self-cleaning program that keeps its emitter brushes clean and further minimizes the need for maintenance. 
    • Ease of installation: the Nu-Calgon air purifier can be easily installed on a wide range of HVAC systems, whether it is inside or outside of ductwork. Some models can even be installed in the supply air, such as the iWave-R air purifier
    • Highly effective particle removal: these purification systems are some of the best ionization devices available on the market, offering top-notch protection against bacteria, viruses, mold, smoke, VOCs, allergens, and other airborne particles.
  • What to look for in Nu-Calgon distributors?

    Professionalism, streamlined services, and a personalized approach are what sets Gustave A. Larson apart, and we would be happy to offer all of these unique characteristics to you and help your business grow. 

    You can count on us to provide you with all the industry-standard HVACR parts and accessories. So, if you are on the lookout for trusted Nu-Calgon distributors, or are looking for top-quality ADP coils and unit cleaners, reliable Heatcraft refrigeration products in the Midwest, the Plains, or the Mountain States, we are your trusted choice.