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Freemax Rexa 4 Airflow Tuning Checklist 2026
Published 2026 · VapeWholesaleHub trade desk
Airflow tuning is the single adjustment that changes how Rexa 4 feels in daily use.
What follows is a practical view of airflow tuning for the Rexa 4, written for people who place repeat orders rather than one off buys.
Freight consolidation changes the answer to airflow tuning at container scale, which is why small and large buyers reach different conclusions.
Why airflow tuning matters on the Rexa 4
Restricted airflow suits mouth to lung customers moving from traditional products.
The most common mistake is optimising for the first order instead of the fourth, which is where Rexa 4 economics actually settle.
Open airflow serves direct lung users who prioritise vapour volume.
Reference specification
| Item | Value |
|---|---|
| Model | Rexa 4 |
| Brand | Freemax |
| Category | Starter Kits |
| Battery | 800 mAh |
| Output range | 8-40 W |
| Capacity | 2.0 ml |
| Charging | USB-C 1A |
| Coil options | 0.8 / 1.2 ohm |
| Carton quantity | 240 units |
An adjustable ring lets one SKU serve both preferences and simplifies inventory.
Practical notes for buyers
Keeping a short internal note on airflow tuning for each SKU pays for itself the first time a dispute arises over the Rexa 4.
Where two suppliers look identical on price, airflow tuning is usually the variable that separates them over a full year.
Checklist
- Confirm the exact configuration in writing before the deposit is paid.
- Verify that artwork matches the approved compliance template.
- Record the arrival condition with photographs on the day of delivery.
- Agree in advance who pays for return freight on a defect claim.
- Request batch photographs and a packing list prior to shipment.
- Retain one sealed sample carton from every batch for reference.
Commercial terms
Most long running accounts settle into a rhythm of monthly top ups with one larger seasonal build per year.
Currency movement over a ninety day cycle can outweigh the difference between two competing quotations.
| Volume tier | Indicative unit level | Lead time |
|---|---|---|
| Carton (120 units) | Tier 1 | 14-21 days |
| Pallet (1772 units) | Tier 2 | 14-21 days |
| Container (6197 units) | Tier 3 | 14-21 days |
Frequently asked questions
Can airflow be adjusted on Rexa 4?
Most current designs include a rotating ring or sliding switch; confirm the exact mechanism on the specification sheet.
What happens if a batch fails inspection?
The agreed procedure normally covers replacement of affected units or credit against the next order, documented before shipment.
Can packaging be adjusted for our market?
Artwork localisation is straightforward; structural changes need larger volumes and a longer lead time.
How quickly can a repeat order be produced?
For established configurations production typically runs two to four weeks, with transit on top depending on the chosen method.
Final word
If only one thing changes after reading this, let it be the habit of checking airflow tuning before reordering.
Trade enquiry
Quotations, samples and artwork files are available on request. Please state model, quantity per SKU, destination and target delivery window.
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