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Graco GMAX II 7900 HD ProContractor Series Airless Sprayer 17E842

Graco GMAX II 7900 HD ProContractor Series Airless Sprayer 17E842

Manufacture part number: 17E842

SKU: 300344

The Graco GMAX II 7900 HD ProContractor Sprayer 17E842 is a high-production gas airless sprayer built for demanding commercial coating applications. Ideal for fluid-applied air barriers, waterproofing membranes, elastomeric coatings, roof coatings, primers, paints, and block fillers, it combines powerful output with Graco’s advanced ProContractor productivity features.

Total Price

$13,050.00

Payments as low as

$2599

*Subject to financing approval

Get started with your rig purchase

The Graco GMAX II 7900 HD ProContractor Sprayer 17E842 is a high-production gas airless sprayer built for demanding commercial coating applications. Ideal for fluid-applied air barriers, waterproofing membranes, elastomeric coatings, roof coatings, primers, paints, and block fillers, it combines powerful output with Graco’s advanced ProContractor productivity features.

Graco GMAX II 7900 HD ProContractor Sprayer 17E842

The Graco GMAX II 7900 HD ProContractor Sprayer 17E842 is engineered for professional contractors who demand maximum productivity, reliability, and performance on large commercial projects. Built to handle demanding coatings and extended production schedules, the GMAX II 7900 HD delivers the power required for fluid-applied air barriers, waterproofing systems, elastomeric coatings, roof coatings, block fillers, primers, and paints.

Combining Graco’s proven Endurance Pump technology with advanced ProContractor features, the GMAX II 7900 HD helps contractors complete more work while minimizing downtime.

Graco GMAX II 7900 HD ProContractor Sprayer Features

  • High-production gas-powered airless sprayer
  • Up to 3.0 GPM maximum output
  • Supports tip sizes up to 0.057 in.
  • Honda engine power
  • Endurance Pump technology
  • SmartControl pressure management system
  • ProConnect 2 Pump Replacement System
  • WatchDog Pump Protection System
  • QuikReel Hose Management System
  • FastFlush Cleaning System
  • Heavy-duty contractor cart design

Built for Commercial Productivity

The GMAX II 7900 HD is designed for contractors who routinely spray large commercial projects and require dependable performance throughout long production days.

  • Handles larger tip sizes and higher material volumes
  • Supports longer hose runs
  • Ideal for larger commercial jobsites
  • Excellent production capability for demanding coatings

Endurance Pump Technology

Graco’s Endurance Pump is engineered for long life and dependable performance.

  • Long-life packings and hardened components
  • Designed for demanding commercial use
  • Reliable performance with heavy-bodied coatings
  • Reduced maintenance requirements

ProContractor Productivity Features

The ProContractor platform includes advanced features designed to keep crews productive and reduce downtime.

  • ProConnect 2 for fast pump replacement
  • WatchDog automatic pump protection
  • QuikReel hose management
  • FastFlush high-speed cleaning system
  • Advanced pressure control system

Graco GMAX II 7900 HD ProContractor Sprayer Applications

  • Fluid-Applied Air Barriers
  • Waterproofing Membranes
  • Vapor Barriers
  • Elastomeric Coatings
  • Roof Coatings
  • Protective Coatings
  • Block Fillers
  • Commercial Primers
  • Architectural Paints
  • High-Build Coatings

Why Choose the GMAX II 7900 HD?

The GMAX II 7900 HD is ideal for contractors who need commercial-level production without stepping up to a larger hydraulic rig. It offers excellent output, portability, and productivity while remaining versatile enough for a wide range of air barrier, waterproofing, and coating applications.

Technical Specifications

  • Maximum Output: 3.0 GPM
  • Maximum Tip Size: 0.057 in.
  • Maximum Pressure: 3300 PSI
  • Power Source: Honda Gas Engine
  • Pump Type: Airless
  • Series: ProContractor HD Series
  • Manufacturer Part Number: 17E842
Need Help Choosing the Right Air Barrier Equipment?

The ideal sprayer depends on material viscosity, hose length requirements, project size, and manufacturer recommendations. Spray Foam Systems can help determine whether the GMAX II 7900 HD, DutyMax GH Series, Mark HD Series, or larger hydraulic systems are best suited for your application.

What’s Included

  • Graco GMAX II 7900 HD ProContractor Sprayer
  • Contractor Spray Gun
  • BlueMax II Hose Package
  • RAC X Tip Guard
  • Integrated QuikReel System
  • Operator Documentation

FAQs

Can the GMAX II 7900 HD spray fluid-applied air barriers?

Yes. The GMAX II 7900 HD is commonly used for fluid-applied air barriers, waterproofing membranes, vapor barriers, and protective coatings when configured according to the coating manufacturer’s recommendations.

What is the output of the GMAX II 7900 HD?

The sprayer delivers up to 3.0 GPM and supports tip sizes up to 0.057 inches for higher-production commercial applications.

Can it spray elastomeric coatings and roof coatings?

Yes. The GMAX II 7900 HD is designed to handle many heavy-bodied commercial coatings including elastomerics and roof coatings.

Do you offer training?

Yes. Spray Foam Systems offers hands-on equipment training at our Greensboro, Georgia facility along with ongoing technical support.

Is bilingual support available?

Yes. We provide Spanish-speaking sales and technical support before and after the sale.

Weight

210 lbs

Dimensions

40.5

X .37

X .27.5 in

Free Shipping

0

Brand

Graco

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Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
I would have to say after buying a few rigs from them whenever I try to reach my reps Hannah or Savannah they answer almost every single time or call me back in minutes. The techs are hard sometimes to get ahold of but when I call the girls they get me the help I need asap. I get all experiences aren’t the same but they have been nothing but great for me. I ask for help, I get it I call for part, it’s sent out and delivered That’s all I think most people would ask for.
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Jason Smegal
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Thanks for the awesomely fast hookup. The power blankets are a game changer!
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42 racing profile picture
42 racing
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Amazing place great people great vibes. Amazing training highly recommend anyone that's planning on getting into the industry going to them. Jamie is amazing trainer along with everyone else all the way down to the owner. You can call at any time and even if they can't answer they always call back. Hoping to grow in this industry and would love to always be a part of it with him. Highly recommend asking for Jamie.. Also I am adding on to this post. I want to notate that even on days that Jamie isn't working. He always is available to help me. he stays on the phone is limited amounts of time to help out with the calls. Walk you through every step. No matter what the issue no matter what the problem is he happens to always find a solution. Highly recommend. Was stuck on a huge problem with a very big job. He was off and help me hours every step of the way and solve the problem. thank you and thank you all for everything else he is absolutely a value in this industry. Will always be my go-to if any trouble comes up. And any education moment.
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darius brown profile picture
darius brown
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I was having trouble finding specific parts I needed. Contacted a lovely woman named natasha and within minutes she had the website updated and the exact parts I needed, ready to order. Very helpful.
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Aaron Sickau profile picture
Aaron Sickau
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So very impressed. Amazing attention to detail. Amazing RIG. Thank you to everyone there!!!
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Rebekah D. - ENERGY Insulation, Inc. profile picture
Rebekah D. - ENERGY Insulation, Inc.
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There's no other company better with customer service. We have been buying parts and supplies from Spray systems for over 5 years. We have a specialized compressor on our rig that went bad and couldn't find the model anywhere in stock. Not only did Spray Foam Systems, Natasha and Collin have it in stock they assisted getting it to me that day 800 miles from their shop. They got on the phones and arranged transportation and we installed it the next morning. We always book up during the summer and Spray foam systems saved us. We would advise anyone when buying a spray foam rig or just buying parts to consider the most important detail there is, "CUSTOMER SERVICE". Without it the Rig isn't worth a penny. Nevertheless if you are considering doing business with any company in the industry Spray Foam Systems take's their business seriously. Thank you Natasha and Collin.
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Monica Bosh profile picture
Monica Bosh
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Matt Chittick from Spray foam systems has helped us with customer service numerous times. He always answers his phone and is there to help. I have been in the spray foam business for many years and whenever we call customer service they are always there to help. I would recommend to anyone who is looking to get into the spray foam business to call Matt Chittick. He has a wealth of information and can walk you through any troubleshooting questions you may have. To me it's not about the cheapest price it's about the service to back it up year after year. Thank you Matt again for your remarkable customer service.
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Monica Bosh

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Frequently Asked Questions

What is spray foam insulation?

Spray Polyurethane Foam (SPF) is a spray applied plastic that provides insulation while providing an air and moisture barrier for roofs, attics, crawlspaces, walls and basements. Spray Foam is a two-component foam that includes an “A” side of isocyanate and a “B” side of Resin and when combined creates a chemical reaction to make foam. After the chemicals are mixed by a trained professional, the foam is dispensed through professional equipment at high heat as a liquid and expands as it sprayed on to a substrate filling any cracks, gaps and voids. Spray Foam Insulation comes in the form of open and closed cell foams. Open cell foam is a light density half pound foam, that can expand up to 100 times when sprayed and has a sponge like texture. Most open cell foam applications are used in the interior of buildings and provide noise-reduction. Closed cell foam is a medium to high density 2 pound foam that is air and water impermeable. Closed cell foam is used for interior building applications, exterior building applications lifting and has a ridged like texture.

A power source (generator or shore power), a proportioner, a compressor, an air dryer, transfer pumps, a hose and guns. These are main components, but further customizations are available, and our sales representatives will help you find the best equipment for your spraying needs.

The warranty on a spray foam insulation rig varies by manufacture. The typical warranty is one year on all components.

The total average cost, including all necessary components is around $100k. Spray Foam Systems makes low-cost options like our cart setups or our mobile spray rigs that average between $50 – $80k.

Yes. We have multiple lenders that offer financing. Financing options and requirements to finance vary by company, however, many lenders have 0% interest available. Submit a financing information request and a member of our team will be happy to assist you!

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