Pen Cartridge Station with Center Purge Tower
4, 6 or 8 x 3 mL Cartridge & Vial Holder
Vial Size Chart
Vial sizes refer to liquid capacity. Below are the approximate dimensions of each common vial — match your vial to the size this case is built for.
| Vial Size | Approx. Size (Ø × H) | Common Contents |
|---|---|---|
| 1 mL | 11 × 32 mm | Small vials |
| 2 mL | 14 × 35 mm | Standard vials |
| 3 mL | 16 × 35 mm | Standard vials |
| 5 mL | 20 × 38 mm | Larger vials |
| 10 mL | 22 × 50 mm | Bottles & diluents |
| 20 mL | 30 × 57 mm | Multi-dose bottles |
| 30 mL | 36 × 63 mm | Large bottles, bulk |
| 50 mL | 40 × 75 mm | Bulk storage |
| 100 mL | 52 × 95 mm | Bulk storage |
Dimensions are approximate and vary slightly by manufacturer. Ø = diameter, H = height (excluding cap). When in doubt, measure your vial’s widest point and height.
- Hard-shell impact protection
- Fridge & freezer safe
- Keeps vials organized & secure
- TSA friendly & travel ready
- Ships in 24–48 hours
You picked a Blemished item
This version has a minor cosmetic or print defect — a small mark, blemish, or imperfection from the 3D-printing process. It’s offered at a lower price because we can’t sell it as new.
- 100% functional — protects your vials exactly the same.
- Cosmetic flaw only — appearance varies slightly unit to unit.
- Discounted & final sale.
The VialCase Cartridge Station stands your 3 mL pen cartridges upright in a ring around a tall center tower. The tower holds an injection pen standing straight up, so you can purge and prime it hands-free, and the outer ring keeps your vials or capped pen needles right beside it - one compact round station for the fridge shelf or the desk.
Key Features
- Center purge tower: a pen stands upright in a 75 mm (2.95″) deep socket - hands-free while you prime it
- Inner ring of cartridge wells: 3 mL cartridges stand upright, crimp end up, labels in view
- Outer ring of round wells: 3 mL vials or capped pen needles
- Compact round footprint - fits a fridge shelf or door
- One solid piece, no lid; safe for storage in the refrigerator
- Available in Black, RGB Metallic, Cyber Green, Galaxy Purple, Purple and Cobalt Blue
What Fits
- Purge tower: pens up to 22 mm (0.87″) wide at the end that goes in
- Cartridges: standard 3 mL glass pen cartridges (11.6 mm × 64 mm), wells 26 mm deep
- Outer wells: 17.5 mm (0.69″) round - 3 mL vials or pen needles in their outer caps, 20 mm deep
Capacity
- 4 Cartridges: 4 x 3 mL pen cartridges + 4 x 3 mL vials (or capped pen needles) + 1 pen in the centre purge tower
- 6 Cartridges: 6 x 3 mL pen cartridges + 6 x 3 mL vials (or capped pen needles) + 1 pen in the centre purge tower
- 8 Cartridges: 8 x 3 mL pen cartridges + 8 x 3 mL vials (or capped pen needles) + 1 pen in the centre purge tower
Dimensions
- 4 Cartridges: 3.18″ L × 3.18″ W × 3.07″ H (81 × 81 × 78 mm)
- 6 Cartridges: 3.78″ L × 3.78″ W × 3.07″ H (96 × 96 × 78 mm)
- 8 Cartridges: 4.05″ L × 4.05″ W × 3.07″ H (103 × 103 × 78 mm)
Care
- Hand wash only with cold water
- Not dishwasher safe
Good to know
- Please confirm your bottle, vial, cartridge and pen sizes before ordering, as manufacturer styles vary
- This is an open organizer stand only - always follow the instructions that come with your pen
- Bottles, vials, cartridges, pens, syringes and pads are not included - photos are staged to show the fit
- RGB Metallic color shifts across red, blue, purple, and pink shades; color patterns are random and vary from listing images
- Each station is 3D printed to order
Shipping
- Free shipping on all orders over $99.99.
- Made to order — ships in 24–48 hours.
- Tracking provided on every order.
Returns
- 30-day money-back guarantee — love it or return it.
- No-questions-asked returns on unused items.
- Contact us and we'll make it right.
Customer Reviews
Real, verified reviews and photos from VialCase customers.
Why VialCase vs. a Generic Box
Built for vials — not a repurposed tackle box.
| Feature | VialCase | Generic Storage Box |
|---|---|---|
| Custom-fit vial slots | ✓ | ✗ |
| Hard-shell impact protection | ✓ | ✗ |
| Fridge & freezer safe | ✓ | ✗ |
| Dedicated diluent-bottle slot | ✓ | ✗ |
| Made in the USA | ✓ | ✗ |
| 30-day money-back guarantee | ✓ | ✗ |
| 1,600+ verified reviews | ✓ | ✗ |
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