The Freemax M Pro 3 is a 28mm sub-ohm tank for direct-lung users who want a wide coil family and a familiar 510 format. Its 5mL US capacity, child-resistant lift-and-slide top cap, and included M1-D and 904L M2 coils make it easy to understand. The important catch is that this is a tank only: it needs a compatible regulated mod and an appropriate power setup.
AT A GLANCE
✓Editorial verdict A practical DTL tank for buyers who value M-series coil choice more than a small footprint or tight draw.
✓Best for Adults with a capable 510 box mod who want 5mL capacity and several compatible Freemax M coil options.
✓Standout The M Pro 3 accepts the M1-D, 904L M Mesh, M Pro Mesh, and M Pro RBA families.
✓Main tradeoff The 28mm tank and high-output coils require a suitable mod, lower-strength liquid, and more liquid than a pod.
Our verdict on the Freemax M Pro 3 Tank
The M Pro 3 is a coil-platform purchase as much as it is a tank purchase. The 28mm body, 5mL US glass, 810 drip tip, and 510 thread are conventional. What separates it is compatibility with the M1-D, 904L M Mesh, original M Pro Mesh, and M Pro RBA families.
The included M1-D 0.15-ohm coil is rated 50 to 80W, with Freemax marking 70W as its best point. The included 904L M2 0.2-ohm coil is rated 60 to 90W, with 80W marked as best. That makes the tank a direct-lung option for a regulated mod with enough power and a top surface that can accept a 28mm atomizer.
The caution is that this is not a complete vape. There is no battery, chipset, or charging cable in the tank package.
What the M Pro 3 specifications mean
A 28mm base needs the right mod
The standard 510 thread makes the M Pro 3 broadly compatible, but the 28mm diameter still matters. Confirm that your mod’s top plate supports the tank without overhang and that its power and resistance range covers the coil you plan to use.
Official Freemax artwork showing the M Pro 3 Tank dimensions and specifications.
The two included coils have different ranges
The M1-D 0.15-ohm coil uses Freemax’s Double-D mesh design and works from 50 to 80W. The 904L M2 0.2-ohm coil works from 60 to 90W. Start low within the printed range and move up gradually rather than jumping straight to the marked best wattage.
Official Freemax artwork showing the Double-D mesh structure.
The broader coil family is the long-term value
Black Note carries Freemax 904L M Mesh coils, and Freemax lists M1-D, 904L M, M Pro Mesh, and M Pro RBA compatibility. That gives experienced users several ways to tune power and draw without replacing the tank.
Official Freemax diagram showing the heating surface and heat distribution.
M Pro 3 versus M Pro 2
Both tanks use a 5mL reservoir, a 510 thread, an 810 drip tip, and the shared Freemax M coil family. The M Pro 3 ships with the newer M1-D 0.15-ohm Double-D mesh coil plus a 904L M2 0.2-ohm coil, while the M Pro 2 ships with 904L M1 and M2 coils. Freemax also lists the M1-D as compatible with the M Pro 2 and the original M Pro, so moving to the M Pro 3 does not create an isolated coil platform. The older tank varies by edition at 25mm or 28.2mm, while the M Pro 3 is 28mm, so mod overhang still needs to be checked.
How to set up the Freemax M Pro 3
1.Confirm your regulated mod supports the coil’s resistance and wattage range and has room for a 28mm tank.
2.Choose the preinstalled M1-D 0.15-ohm coil for its 50 to 80W range or install the included 904L M2 0.2-ohm coil for 60 to 90W.
3.Install the coil firmly and wet the exposed wicking ports with e-liquid.
4.Lift and slide the child-resistant top cap, fill the 5mL glass without overfilling, close the cap, and allow the wick to saturate according to the coil instructions.
5.Open the bottom airflow, start near the low end of the coil range, and increase wattage in small steps.
Official Freemax artwork showing the child-resistant lift-and-slide top fill.
The M Pro 3 is built for lower-strength, VG-forward freebase e-liquid at direct-lung power. It is not a sensible match for high-strength salt liquid intended for a small pod.
Care and troubleshooting
Dry or burnt taste: stop firing, confirm the tank has liquid, and replace a damaged coil. Never solve a dry taste by adding power.
Gurgling: check the coil seal, clear excess liquid from the airflow path, and confirm the top cap is closed.
Leaking at the base: inspect the coil, O-rings, and glass seating. Replace damaged seals before refilling.
No atomizer message: clean and dry the 510 contacts, reinstall the tank, and confirm the coil is seated correctly.
Muted output: verify the mod is reading the expected resistance and that the wattage is within the coil’s printed range.
Pros, cons, and who should buy it
Pros
5mL US capacity
Child-resistant lift-and-slide top fill
Standard 510 thread and 810 drip tip
M1-D and 904L M2 coils included
Compatibility with several M-series coil families
Replacement glass included
Cons
Tank only, with no mod or battery included
28mm base may overhang smaller mods
High-output DTL use consumes more e-liquid than a pod
Not designed for a tight mouth-to-lung draw
Buy it if
You already own a capable regulated box mod, want a 5mL direct-lung tank, and value access to the established M coil family.
Technical image gallery
Official Freemax artwork showing M1-D and 904L M mesh coil options.
Official Freemax artwork showing additional compatible M-series coils.
Official Freemax artwork comparing M Pro tank platforms.
Official Freemax artwork showing the M Pro 3 Tank package contents.
Frequently asked questions
How does the Freemax M Pro 3 child-resistant top fill work?
Lift the top cap before sliding it open. That two-step motion is the child-resistant part of the M Pro 3's top-fill design. Freemax says the cap is ISO 8317 certified. After filling, slide the cap closed and press it down into its locked position before using the tank.
What is the difference between the included M1-D and 904L M2 coils?
The preinstalled M1-D is a 0.15-ohm Double-D mesh coil from the FM COILTECH5.0 platform. The spare 904L M2 is a 0.2-ohm SS904L mesh coil. They are different coil designs and resistances, so use the wattage printed on the installed coil instead of carrying one setting from the other.
How does the M Pro 3 differ from earlier M Pro tanks?
The M Pro 3 updates the M Pro line with Freemax's M1-D Double-D mesh coil, a lift-and-slide child-resistant top cap, and continued M Platform coil support. It keeps the familiar 5 mL US capacity, 28 mm diameter, 510 connection, and 810 drip tip. The most meaningful changes are the filling mechanism and included coil platform.
Can you replace the glass on the Freemax M Pro 3 Tank?
Yes. The package includes a spare glass tube and silicone ring. Empty the tank, remove it from the mod, unscrew the base, and separate the glass only after the tank is cool and dry. Reassemble the seals evenly and check for gaps before filling. The included spare is intended for the M Pro 3's 5 mL configuration.
How do you change a coil in the Freemax M Pro 3 Tank?
The M Pro 3 uses threaded replaceable coils. Remove the tank from the mod, turn it upside down, unscrew the base, and thread the replacement coil into the base without over-tightening. Prime the exposed cotton with e-liquid, reassemble, fill the tank, and allow the wick to saturate before beginning at the low end of the coil's printed range.
What comes in the standalone Freemax M Pro 3 Tank package?
The package includes the M Pro 3 with a preinstalled M1-D 0.15-ohm coil, one 904L M2 0.2-ohm coil, a spare glass tube, a silicone ring, the user manual, and desiccant. It does not include a mod, battery, charging cable, or e-liquid.