Devilbiss FLG 4 Spray Gun (Gravity-Suction-Pressure)

Devilbiss FLG 4 Spray Gun (Gravity-Suction-Pressure)


Devilbiss Finishline FLG-4 Spray Gun Series

Model No.: FLG-670, FLG-671, FLG-678


Nozzles: 1.3mm, 1.5mm, 1.8mm, 2.2mm
Atomisation Technology:  HVLP, Conventional
Air Caps:
#1 (Air Flow: 9.9 CFM/280 lpm @ 40 PSI/2.8 bar inlet)
#3 (Air Flow: 13 CFM/386 lpm @23 PSI/1.6 bar inlet)
Rebuild Kit: available (FLG4-488-K)
Spare Parts: available (see “Service Manual/Parts Breakdown”)
Maximum Air Pressure: 100 PSI/6.9 bar
Gun Body: Forged Aluminum
Fluid Path: Anodized Aluminum  and Stainless Steel
Air Inlet: 1/4″ NPS male
Gun Weight: 18.13 oz (514 g)

FAQ – Frequently Asked Questions:

  • What is the difference between FLG-4, FLG-670, FLG-671 and FLG-678?
    FLG-4 is the Finishline series
    FLG-670, FLG-671, FLG-678 are the different models/kits:
    FLG-670: Solvent-Based Kit (HVLP 1.3, 1.5, 1.8mm)
    FLG-671: Water-based Kit (HVLP 1.3, 1.5, 1.8mm)
    FLG-678: Primer Kit (HVLP 1.8 and 2.2mm)
  • What is the model code of the FLG-4 spray gun?
    FLGHVG315 is Gravity Feed – HVLP spray gun (nozzle: 1.5 mm)
    FLG-HVP-315 is Pressure Feed – HVLP spray gun (nozzle: 1.5 mm)
    FLG-CNS-115 is Siphon Feed – Conventional spray gun (nozzle 1.5 mm)
    FLG: Basis Model of spray gun
    HV, CN: HVLP or Conventional version
    G, P, S: Feed type (Gravity, Pressure, Suction)
    1, 3 : Air Cap (#1 or #2)
    15: Nozzle Size (15=1.5mm)

Service Manual/Parts Breakdown:

Devilbiss FLG4 – Gravity Feed (Source: Devilbiss)
Devilbiss FLG4 – Pressure Feed (Source: Devilbiss)


The Devilbiss FLG-4 spray gun from the Finishline series is a general purpose spray gun suitable for a wide range of coating materials. It is available either as gravity, siphon or pressure feed.  The fan control can adjust the spray pattern from 10” (254mm) to round. The needle and fluid nozzles are made from stainless, the air caps from brass.


Automotive refinishing, General purpose finishing, incl. base- and clearcoats

Competitor Products:

Optima 900, Devilbiss JGX-502, Iwata LS-400, Devilbiss FLG-5, Devilbiss Startingline

Where to buy?:

(check best prices on Amazon)


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