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How to Source Freemax Rexa 4: Airflow Tuning
Published 2026 · VapeWholesaleHub trade desk
Airflow tuning is the single adjustment that changes how Rexa 4 feels in daily use.
Distributors reviewing their Rexa 4 range usually find that airflow tuning explains most of the variance in results between accounts.
Keeping a short internal note on airflow tuning for each SKU pays for itself the first time a dispute arises over the Rexa 4.
Why airflow tuning matters on the Rexa 4
Restricted airflow suits mouth to lung customers moving from traditional products.
Keeping a short internal note on airflow tuning for each SKU pays for itself the first time a dispute arises over the Rexa 4.
Open airflow serves direct lung users who prioritise vapour volume.
Reference specification
| Item | Value |
|---|---|
| Model | Rexa 4 |
| Brand | Freemax |
| Category | Box Mods |
| Battery | 400 mAh |
| Output range | 5-80 W |
| Capacity | 4.0 ml |
| Charging | Magnetic dock |
| Coil options | 1.0 / 1.2 ohm |
| Carton quantity | 240 units |
An adjustable ring lets one SKU serve both preferences and simplifies inventory.
Practical notes for buyers
Where two suppliers look identical on price, airflow tuning is usually the variable that separates them over a full year.
Seasonality interacts with airflow tuning more than most forecasts allow for, so a rolling review beats an annual one.
Checklist
- Log sell through by account for the first eight weeks.
- Review the reorder point after one full selling cycle.
- Check carton quantities against the commercial invoice line by line.
- Confirm the exact configuration in writing before the deposit is paid.
- Verify that artwork matches the approved compliance template.
- Agree in advance who pays for return freight on a defect claim.
Commercial terms
Agreeing a defect handling procedure before the first shipment removes emotion from later conversations.
Commercial terms are usually agreed in three parts: a deposit on confirmation, a balance before shipment and a stated validity window.
| Volume tier | Indicative unit level | Lead time |
|---|---|---|
| Carton (79 units) | Tier 1 | 21-30 days |
| Pallet (1537 units) | Tier 2 | 14-21 days |
| Container (13508 units) | Tier 3 | 30-45 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.
Do you support long term supply agreements?
Yes, rolling agreements with defined review points work better for both sides than rigid annual commitments.
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 several models be mixed in one shipment?
Yes, mixing models and flavours within a carton or pallet is common and usually helps first time buyers test demand.
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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