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Wholesale Guide

Cartridge Specification Change Control — Tight Margin Categories

Published 2026-01-03 · 5 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.

Selling Cartridge at Store Level

Keep the cartridge range tidy. A half empty shelf reads as a dying line, and customers interpret it that way faster than any signage can correct.

What to Fix Before Approving Cartridge

Specification sheets are where a cartridge deal is won or quietly lost. Two samples can look and taste the same while using different coil wire, different wicking density and different tolerances on the mouthpiece. Those details decide how the unit behaves in week three rather than minute three.

A written cartridge specification should be short enough to read in a minute and precise enough to argue about. If a factory cannot confirm a number in writing, assume the number is whatever is cheapest that week.

Reference specification for Cartridge orders
Product categoryRefillable kit
Resistance band0.8 - 1.0 ohm
Capacity tolerance+/- 5%
Puff count methodDeclared by capacity
Master carton200 units
Carton weight3.3 kg
Shelf life18 months
Storage15-25 C, dry, away from direct light

How Cartridge Fits the Assortment

Category planning for cartridge works best when you map it against three shopper types: the restocker who already knows what they want, the switcher who wants something stronger, and the explorer who buys on flavour name alone.

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.

Inspection Before Dispatch

Random checks are fine, but weight the sample towards the start and end of a cartridge production run. Those are where a line is most likely to drift.

Train whoever receives cartridge cartons to note anything unusual at the point of unloading. Damage discovered at the dock is a freight claim; damage discovered a week later is your problem.

Pricing and Margin

Margin on cartridge is rarely lost at the till. It is lost through dead stock, returns and emergency air freight. A slightly higher landed cost with predictable lead time usually beats the cheapest quote on the spreadsheet.

Discounting cartridge to win shelf space tends to reset customer expectations permanently. Volume support in kind, such as display material, usually costs less in the long run.

Indicative reference points for planning purposes: entry tier from USD 1.61 per unit at 1000 units, mid tier at USD 0.88, and volume tier at USD 0.88 for full container quantities. These figures move with specification, packaging and freight, so treat them as a shape rather than a quote.

Logistics That Protect Margin

Carton dimensions for cartridge are a design decision, not a packing afterthought. A few centimetres on the master carton can change how many units fit a pallet, and that repeats on every order.

Track cartridge landed cost per unit as a running number, including duty and local delivery. It is the only figure that tells you whether a supplier change actually improved anything.

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

Practical Checklist

Frequently Asked Questions

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.

Can you match an existing product I already sell?

Often yes, provided we can measure it properly. Send a physical sample and we will report back on what can be matched, what will differ slightly, and why. An honest gap is more useful than a vague promise.

How are price changes handled on repeat orders?

{K} pricing is reviewed against input costs and volume rather than adjusted casually. Any change is confirmed in writing before the next order is scheduled, with the reason stated so you can judge it yourself.

Can the packaging be customised?

Yes. Most cartridge programmes use private label packaging once volumes justify the printing plate. We supply dielines, check your artwork for print issues and hold approved files so reorders need no new setup.

What if a batch does not match the sample?

Keep the retained samples from the approval stage. If a delivered batch measurably differs, we compare against the retained set and resolve it against the production record. This is why we insist on sealed retained units from every run.

Next Step

Send us your current cartridge specification even if you are not planning to move suppliers. A second read of a document you use every month is usually worth the ten minutes.

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