DeVilbiss FinishLine 4 FLG-670 Review

Editor Rating: 4.4/5

Great Product

DeVilbiss FinishLine 4 FLG-670

Reviewed by: Timothy Henderson

Last modified: Aug 7, 2023 @ 7:02 am

  • Design
  • Functionality
  • Price

DeVilbiss FLG-670 Review Summary:

The DeVilbiss FinishLine FLG-670 is an HVLP gun from the 4 series of paint sprayers. Both straightforward to use and to clean due to the anodized exterior and interior DeVilbiss FLG4 parts — you’re ready to tackle anything from a complete car respray to a fender touch-up.

Falling into the high-volume, low-pressure category means that the DeVilbiss FinishLine 4 delivers a finer finish with very little overspray. This trims down wastage — leaving more paint for other projects that you may have on the go.

Once you dial it in, the DeVilbiss FLG 670 delivers even coverage without the orange peel effect. Furthermore, with a choice of three fluid tips, this gravity-fed gun can handle a whole host of solvent-based mediums.

High-grade stainless steel components make for a durable, long-lasting friendship. Plus, with its air adjusting valve complete with gauge — you will never want to be parted.

DeVilbiss was established in 1888 and is one of the founding fathers of the spray painting industry. Many years of research into their products have helped them develop user-friendly paint guns that are modestly priced.


Three fluid tips included (1.3, 1.5 and 1.8 mm).
Air adjusting valve with gauge.
Provides a soft uniform spray pattern.
HVLP high transfer efficiency.
High-grade stainless steel components.
Anodized exterior and internal passages — for a fuss-free cleanup.
900 cc paint cup.


Latex paints may require thinning.
Filter not included — but can be purchased separately.

Features and Benefits of the DeVilbiss FinishLine 4 FLG 670

Choosing a spray gun can be a bit of a challenging feat, so let’s have a look as to whether this DeVilbiss FLG4 spray gun is the one for you.

HVLP High Transfer Efficiency

According to the DeVilbiss FLG4 manual, HVLP (high-volume, low-pressure) delivers maximum transfer efficiency. This means that you end up with more paint on “target” and less wastage.

To get the most out of your HVLP gun — make sure that you don’t use more pressure than is necessary to atomize your chosen paint.

Precision Machined Air Cap and Fluid Nozzles

The DeVilbiss FLG670 features a precision machined air cap and three different sized fluid nozzles — optimizing the desired finish to your project.

The 1.3 mm nozzle is suitable for base coats and clear coats. The 1.5 mm is a solid all-arounder with multiple uses on different materials. Lastly, the 1.8 mm is designed with primers in mind.

Anodized Exterior and Internal Passages

Another nice touch that’s included in the DeVilbiss FLG4 parts breakdown, is the high-quality anodized exterior and internal passages. This leads to a durable, simple to assemble, disassemble and hassle-free cleanup gun.

It’s well known that religiously cleaning your sprayer after use leads to a longer lifespan. What’s more, if your gun isn’t such a chore to clean, you’ll be more inclined to complete this tedious task.

900 cc Aluminium Cup

Unlike other plastic loving models on the market, the DeVilbiss FinishLine FLG4 comes with a durable aluminum 900 cc cup. This means you shouldn’t need to purchase replacements too often.

However, the paint cup cover is plastic. Yet, it’s recyclable and also features a unique drip check to prevent the paint from trickling out of the vent.

The large size of this cup also means fewer interruptions to your spraying — you won’t need to refill the paint quite so frequently.

Air Adjusting Valve With Gauge

The air adjusting valve with gauge allows for greater control and fine regulation of your spray job — meaning you get the results that you anticipated.

The valve reduces dips in pressure to your DeVilbiss FLG4, while the gauge enables you to know the exact pressure — so that you can spray efficiently.

What Users Say About The Devilbiss flg 670

So far in this Devilbiss FinishLine 4 review, you’ve heard all about what I think. But, what do the guys and gals on the painting frontline have to say?

It seems that I’m not the only one impressed with the performance of this spray gun.

Many mention the DeVilbiss FinishLine FLG 4 is a game-changer and makes it so much easier to achieve that pro-look finish. Users also rate its incredible atomization, perfect coverage and pattern.

The only drawback noted was the lack of a filter to prevent debris from spoiling your paintwork. However, this can be easily rectified by purchasing the part separately if so desired.

Take a look at the DeVilbiss FinishLine 4 FLG-670 reviews for yourself.

Alternatives to DeVilbiss FinishLine 4 FLG-670

If you’ve reached this point in this DeVilbiss FLG 4 review and you’re unsure whether the DeVilbiss FinishLine 4 FLG-670 is going to meet all your requirements. I’ve taken the liberty of checking a few others out — just in case.

DeVilbiss FLG-671 Waterborne Kit

If you like the FLG-670, but the projects you have in mind don’t require heavy-duty mediums — the FLG-671 could appeal.

It still includes the same three fluid tips and a gauged air adjustable valve. It’s also anodized for ease of cleaning. However, as the name suggests, it’s designed for use with water-based materials — base coats, topcoats and light primers.

Furthermore, when it comes to the post-project cleanup — these types of mediums are less hassle to deal with.

  • Suitable for water-based mediums, whereas the FLG 4 is for solvent-based.
  • Both the FLG-671 and FLG670 feature anodized components for fuss-free cleaning.
  • Includes an acetal (plastic) cup — as opposed to aluminum of the FinishLine.

HomeRight Super Finish Max Extra Power Painter

Are you looking for something that can handle dense materials, yet the thought of using an air compressor feels too complicated for you? The Homeright may tick all your boxes.

This handheld unit features three fluid tips (1.5 mm, 2.0 mm and 4.0 mm) and two spray caps — enabling fine spray and wide spray. Furthermore, with adjustable controls, such as paint flow and spray patterns (horizontal, vertical and round) — you can tailor this gun to your task at hand.

Although, weighing in at 3.3 pounds, it’s double the weight of the DeVilbiss.

  • Option of three spray patterns, whereas the FinishLine 4 FLG-670 only accommodates one (horizontal).
  • Like the DeVilbiss, the Homeright includes three spray nozzles.
  • Features an Inbuilt turbine — no need for a compressor like the DeVilbiss FLG 4.

Fuji Spray Gun (5175G-T75G)

Are you looking for something that does a little bit more, perhaps even a professional-grade spray gun? The Fuji Spray 5175G-T75G may be for you.

Featuring a 1.3 mm spray tip, as well as a Pattern and Fluid Control dial for fine-tuning the spray pattern and amount of paint dispensed. All medium components consist of durable stainless steel, plus it incorporates an Easy-Pull trigger to reduce painting fatigue.

  • Smaller paint cup (600 cc) than the FinishLine 4 (900 cc).
  • Components are stainless steel — like the DeVilbiss.
  • Similar price point to the FLG670.


For the automotive enthusiast or expert that wants to achieve quality results — the DeVilbiss FinishLine 4 FLG-670 HVLP spray gun could appeal.

The three different sized fluid tips can grapple with a wide array of materials, from topcoats to heavy-duty primers — along with covering projects of different sizes — such as respraying that classic Cadillac to pimping your latest ride.

It’s large 900 cc paint cup means less downtime for refills, allowing you to complete your project swiftly. And, once you’ve reached the end of your task, the anodized internals paves the way for hassle-free cleaning.

If you’re looking for a new addition to your workshop that covers a whole range of automotive tasks, I’d suggest checking out the DeVilbiss Finishline 4 FLG-670.

DeVilbiss FinishLine 4 FLG 670 FAQs

Is There a Storage Case Included With the DeVilbiss FinishLine 4 FLG-670?
No. The FinishLine 4 FLG 670 does not include a storage case.
Can I Complete Large Projects With the DeVilbiss FinishLine 4 FLG-670?
Yes, you can! The DeVilbiss FinishLine 4 FLG-670 fits is primarily designed with spraying automotives, boats, and bikes in mind. The three nozzles included provide you with a variety of options.
Is an HVLP Spray Gun Good for DIY?

HVLP spray guns are ideal for home improvement projects. They save a lot of paint due to the high transfer efficiency — which, in turn, saves you time and money. For advice on their use, check out my How To Use and Set Up HVLP Sprayer guide.

What Is the Current Cost of the Devilbiss Finishline 4?

As this DeVilbiss FLG4 review has shown, this gun will cut down wastage, time spent on the project and provide pro-like results with solvent-based paints. To check out the current cost of the DeVilbiss FLG4.

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