DeVilbiss GTI620G Review

DeVilbiss GTI620G

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  • Requires 18 CFM at 23 PSI
  • Multiple fluid tips included (1. 3, 1. 4, 1. 5)
  • Perfect for beginners and Pros
  • 1 year warranty
  • 32 ounce aluminum cup
  • 3 lbs

Though there are a lot of choices for you to sift through, there are a few models that stand out to many painters, both professional and hobbyist. One of the names that is mentioned more than once is the DeVilbiss GTI620G Millennium HVLP. Let’s take an in-depth look at this gravity-fed HVLP paint sprayer.

Painting or retouching a large project like your house or painting your vehicle can be quite an undertaking.  That’s why having a good paint sprayer like the DeVilbiss GTI620G is the perfect investment for your shop.

By choosing a paint sprayer like the high quality GTI, you’ll end up with professional looking results in less time. 

The materials used in the construction of the DeVilbiss GTI620G are of the highest quality and will last you for many projects to come. This means that it saves you money in the long run, as well, and saving money is a definite plus. 

DeVilbiss makes some of the best spray guns on the market.  Great for your automotive painting shop or spraying projects, DeVilbiss has a model for everyone.  

They offer manual and automatic spray guns, as well as models specifically designed for touch-ups. There are a lot of things about spray guns from DeVilbiss that help make them stand out.  

For example, it’s super easy to find a DeVilbiss GTI Millennium rebuild kit.  Guns are made in the US and their customer service is top notch.  They stand behind their products with a 1 year warranty and DeVilbiss GTI Millennium Parts are easy to come by. 

We love that the body of the GTI620G is designed in high-grade anodized steel both on the exterior and interior. This stops your gun from rusting and makes it extremely easy to clean.  

The design is the typical gravity-feed paint sprayer design, which is what makes this an option that is perfect for precision and efficiency.  We really made use of the 25% larger spray pattern that helped us to cover our surface faster than other sprayers in the same category. 

Works well with water based paints
Fast Spraying
Soft, smooth and consistent finish

Some issues with flutter
Long work sessions can impact spray consistency

Features of the DeVilbiss GTI620G Millennium

Features of the DeVillbiss GTI620G
1 year warranty
25% larger spray pattern for faster spraying
Steel parts
Lightweight 3 pounds
32 oz aluminum cup Easy Stain
3 tips: 1.3, 1.4, 1.5mm

What Comes with the DeVilbiss GTI-620G 

The included cup is 32 ounces, which is just the right size for medium sized jobs. 

The GTI620G comes with 3 tips (1.3, 1.4, and 1,5mm) that will allow you to spray a variety of materials from clear to base.  With an operation that functions under 23 PSI, you will have more control over your spray.  

The great thing about this model being coated on the inside is that you can use water-based paints without worrying about rust and corrosion.    

Not only do you get the sprayer, cup and 3 tips but you also get an air adjusting valve cleaning kit, a lube for spray, fluid filter, and disposable cup liners.  We like the value that comes with this purchase. 

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How Much does the DeVilbiss GTI Weigh?

The GTI620G is lightweight at 3lbs. You won’t suffer from wrist or arm fatigue with this unit.  For its’ price point, the weight and performance stand out in this category.  If weight is a huge issue for you, jump up to the premium Iwata Supernova or LPH400 to get a sprayer that weighs around a pound! 

The DeVilbiss Millennium GTI620G offers an enhanced level of atomization. This will help you get the perfect smooth and consistent finish on your surface. The consistency and uniformity that this precision paint sprayer offers is one of the main reasons we recommend it. 

Issues with the DeVilbiss GTI620G 

Though there are a lot of great things to say, there are few issues that may cause a pause in your decision to make this your go-to sprayer. The first is the there are some issues with fluttering. This may mean that there is a bit of paint that spits out between the tip and the gun.  This could lead to unwanted paint on you or your surface.

The other issue is that we noticed is that the DeVilbiss GTI620G manual mode can become a little temperamental after long periods of use. The overspray is controlled, but, after a while of use, you may see a bit more inconsistency. 

Check out this video below for a solution to your fluttering issue.

DeVilbiss GTI620G Manual

If you need a copy of the manual, download it here.


The DeVilbiss GTI620G is one of the best paint sprayers if you’re looking for consistent professional results on both your automotive and DIY household projects.


What is the best paint sprayer for cars?  

Check out our detailed discussion HERE for a good car paint gun.