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Wholesale Guide

Cartridge Documentation Pack for Customs Brokers — Premium Shelf Programmes

Published 2026-07-03 · 9 min read · by the VapeWholesaleHub sourcing team

Cartridge has moved from a niche listing to a category that most vape retailers simply have to carry. That popularity brought a flood of near identical offers. This guide explains how to separate a repeatable supply chain from a lucky sample.

Cartridge product overview
Reference view of the cartridge line prepared for wholesale evaluation.

Modelling a Healthy Margin

Hold a small cartridge buffer in your pricing model for currency movement. A few percent on a container is a real number, and it is easier to plan for than to absorb.

Indicative reference points for planning purposes: entry tier from USD 2.37 per unit at 2000 units, mid tier at USD 0.88, and volume tier at USD 0.97 for full container quantities. These figures move with specification, packaging and freight, so treat them as a shape rather than a quote.

How Cartridge Fits the Assortment

A tight cartridge range with deep availability usually outsells a wide range with thin stock. Customers who find their line in stock come back; customers who are told to wait do not.

Cartridge rewards retailers who can explain it in one sentence. If your team needs a paragraph, the range is too complicated for the space it occupies.

How Cartridge Batches Are Checked

AQL sampling gets a lot of attention, but for cartridge the more useful habit is simply measuring the same three things on every single batch. Trend lines catch problems that pass/fail checks miss.

The defect rate that matters is the one your customer experiences, not the one the factory reports. Bridge that gap by inspecting the way a customer would open the box, not the way a line worker packs it.

Getting Cartridge to Your Warehouse

Freight is the hidden half of cartridge unit economics. A denser master carton can save more per unit than a hard negotiation on factory price, because the saving repeats on every reorder rather than once.

Cartridge logistics and packing
Master carton configuration used for cartridge shipments.

Merchandising and Listing Tips

Use your cartridge staff training time on the two questions customers actually ask. Anything more detailed gets forgotten by the second shift.

Online, shoot cartridge at a consistent scale across the range. Customers compare by eye, and inconsistent product photography creates returns that have nothing to do with the product.

Practical Checklist

Frequently Asked Questions

What is the usual minimum order for cartridge?

For a standard production run the minimum is normally one master carton per flavour, though mixed cartons can be arranged for a first order. If you are testing the line, ask about a sample pack first and treat the freight as part of your research budget.

Is there a warranty on cartridge?

Manufacturing defects are covered against the retained sample standard. Normal wear, misuse and damage after opening are not. We publish the threshold in the order terms so both sides know exactly what the claim process looks like.

How should cartridge be stored?

Cool, dry and out of direct sunlight. Heat and light are the two things that shorten shelf life fastest. Rotate stock by batch code rather than by arrival date, and keep cartons off concrete floors in humid warehouses.

Can I mix strengths in one order?

In most cases yes, as long as each strength meets the minimum run length. Mixed strength cartons are popular with retailers building their first display because they show the full ladder without over committing.

Next Step

Whether you order from us or elsewhere, keep a retained sample from every batch. It costs almost nothing and it is the single most effective protection available to a cartridge buyer.

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