4-Slot Linear 3ml Vial Case — White & Gold Slim PETG Vial Box
4-Slot Linear Vial Case - Four 3ml Vials in a Slim White & Gold Shell
This 4 slot linear 3ml vial case is the slim strip format of our sealed vial case family: four 3ml vials sit in a single row inside a removable gold-finish insert, held down by a foam-lined hinged lid and locked by an over-centre PETG latch. The shell is printed in white PETG with gold-finish detailing on the lid edge, latch strap, hinge screws and insert - a white-outside, gold-inside look we developed for premium peptide brands. This is the colourway shown on this page; any part can be built in another colour on request. At 87 x 31 x 48 mm it slides into a jacket pocket or a padded mailer without the bulk of a square case. Factory-direct from our 15,000㎡ plant - MOQ 30 pcs for this series, indicative US $2.30-$3.30/pc, 15-25 day lead time.
Specifications & Sizes - 4-Slot Linear 3ml Vial Case
| Item | Value |
|---|---|
| Model | 3ml 4-Slot Linear |
| Outer size | 87 x 31 x 48 mm (the 31 mm width excludes the latch and the rear hinge) |
| Capacity | 4 x 3ml glass vials in a single row; 2ml vials also seat in the same cavities, with a little movement |
| Insert | Removable gold-finish PETG insert, four cavities in one row; lifts out for cleaning, spare inserts and other insert colours available |
| Material | 3D-printed PETG throughout - shell, hinged lid, over-centre latch strap and insert; foam-lined lid; no silicone parts |
| Closure | Integral hinge with gold-finish pins plus an over-centre PETG latch strap - compression seal against dust and splashes (not rated for submersion) |
| Colourway | White shell with gold-finish insert and detailing - the colourway shown on this page; shell, lid and insert can each be built in another colour, per order |
| Finish | Matte textured surface; colour is pigmented into the PETG, not applied on top |
| MOQ / Sample / Lead time | 30 pcs | sample in 5-7 days | 15-25 days |
| Indicative price | US $2.30 – US $3.30 / pc — standard stocked build, EXW; a general quotation, not a lowest or highest price |

White Outside, Gold Inside - Where the Colour Sits
We put the gold where it counts. The shell stays white PETG - quiet on a shelf, easy to print a logo onto, and forgiving of fingerprints - while every working detail is picked out in gold: the seam line that runs around the lid edge, the over-centre latch strap, the hinge screws that pin lid to base, and the full inner insert that carries the vials. Closed, it reads as a clean white box with one gold line. Open it, and the contrast does the selling for you.

Because the shell and the insert are separate printed parts, the two-tone build is structural - and the gold is pigmented through the PETG rather than coated on top, so it will not rub off. White and gold is the colourway shown on this page; any part of the case can be specified in another colour, and spare inserts ship on their own.


The Gold Insert Lifts Out
The gold insert lifts out. The four-cavity insert is a separate PETG part. It comes straight out of the base, so the tray can be wiped down on its own, and it drops back into the same recess. The shell, latch and hinge are left untouched.
Foam above, insert below. A foam pad bonded into the hinged lid presses each vial gently into its cavity, so nothing rattles even when the case travels half full - fewer vial-to-vial knocks, fewer cracked flanges on arrival.



Will Your Vial Fit? Pair It With Matching Glass Vials
Already have your vials? The standard insert holds four 3ml vials in a single row. The same cavities take 2ml vials as well - they sit with a little movement, which is fine for normal handling.
Need the vials too? One factory - case and vial matched. We are a direct manufacturer of pharmaceutical-grade glass vials (2ml-30ml, clear and amber, rubber stopper and flip-cap options). Buy the case and the vial together: one purchase order, one QC standard, no size-mismatch risk.
- 3ml glass vial - matches the standard four-cavity insert
- 2ml glass vial - also seats in the standard cavities, with a little movement
- amber glass vials - light-protection option
- pharmaceutical glass vials - full 2ml-30ml range, stopper and cap options, wholesale prices
Why Choose This 4-Slot Linear Vial Case


Real-World Use of the 4-Slot Linear Vial Case
A four-dose titration pack that patients actually carry. Retail brands use it as a sampler strip: four SKUs, one slim branded case. Clinics use it as a sealed hand-off case for a four-week course. Kit builders drop it into starter kits where a square case would waste space, and the white-and-gold edition is the one we get asked for when the case has to look premium in a photo or an unboxing video.

Materials & Construction
The shell is 3D printed in PETG - impact-resistant, low moisture absorption and clean colour rendering - with a matte textured surface. Base and hinged lid print as a precise mating pair around the removable four-cavity insert, closed by an over-centre PETG latch strap on gold-finish pins. The lid carries a foam liner that presses the vials into their cavities. No silicone parts anywhere in the assembly, so there is nothing to absorb odour or interact with your product. PETG is vacuum-dried before printing, so walls, hinge bores and cavities keep their dimensions batch after batch.
Factory QC, Drop Test & Quality Assurance
Every batch of this 4-slot linear case passes the same in-house test matrix as the rest of our sealed vial case line. All testing runs on our own machines:
| QC check | What we check & our pass standard |
|---|---|
| Drop test | Free-fall onto a hard surface from approx. 1.0 m, sampled from every batch - the shell stays intact, the latch stays shut and the vials stay seated. Drop height can be adjusted to your transport spec. |
| Latch & hinge cycling | Machine-driven open/close cycling on the rotation tester - verified for 300+ cycles with no hinge play and no latch failure. |
| Pull / closing force | Latch closing force sampled on the force gauge and held inside factory tolerance, so every case has the same firm, consistent close. |
| Climate cycling | Constant temperature & humidity chamber simulates sea-freight conditions - checked for warp, brittleness or colour shift after the cycle. |
| Material / moisture | PETG is vacuum-dried before printing, so walls, hinge bores and insert cavities stay dimensionally accurate and free of voids. |
| Final inspection | 100% visual and dimensional check before packing - outer size, cavity depth, insert fit, latch action, colour and logo registration. |
Batch flow: sample - test - record - QC release. Test records are kept per batch and can be provided with your order or on request. See about our factory & QC for the full equipment list.
Customization Process - Custom Vial Boxes from MOQ 30, Sample in 5-7 Days
Send inquiry (24 h reply) - free structural design & proof (48 h) - sample (5-7 days) - confirm & 30% deposit - production with QC (15-25 days) - ship & after-support. The MOQ for this series is 30 pcs per colourway. Tell us your target quantity and we will point you to the closest format. Custom colours, printed logos and spare inserts are quoted per order - send your artwork or Pantone code with the inquiry.
Pricing, MOQ & Order Volume
| Item | Detail |
|---|---|
| Indicative price | US $2.30 – US $3.30 / pc |
| Price at 30–49 pcs, no logo | US $3.30 / pc |
| Price at 30–49 pcs, with your UV-printed logo | US $3.50 / pc — +US $0.20 for the print |
| Price from 50 pcs, logo included | US $3.30 / pc |
| How to read this range | The low end of the band is the high-volume level, not an order-quantity price; the top of the range is what a 30–49 piece run carries without a logo. A UV-printed logo adds US $0.20 per piece at 30–49 pcs and is included free from 50 pcs. Custom builds and larger runs are quoted on your specification and quantity. |
| MOQ | 30 pcs for this series - the standard minimum across this range |
| Lead time / Sample | 15-25 days after artwork approval / sample 5-7 days |
| Volume orders | Repeat and volume orders are re-quoted on the same tooling - ask for a quantity ladder |
Tell us vial size, colours, number of print positions and target quantity, and we return a firm quote within 24 hours - no obligation.
FAQ - 4-Slot Linear 3ml Vial Case
Same Vial Case Family, Other Capacities
- 2 slot 3ml vial case - pocket mini for two vials
- Custom 3ml 4-Slot Vial Holder - square 2 x 2 version of four vials
- 6-slot peptide vial case - six vials in a 2 x 3 grid
- 10 slot 3ml vial case - ten vials for a full course
Building a tiered line? This slim strip sits between the pocket 2-slot and the larger grid cases, so one brand look can run across every capacity.
Send your vial size and target quantity - get a quote with free structural design within 24 hours.
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