5 vials
Bacteriostatic water, 5 × 10ml vial
Five sealed 10ml vials in one pack. This is the quantity most people settle on after their first order: enough that you are not re-ordering constantly, small enough that every vial gets used well inside its in-use window.
Who it suits: The standing repeat order — ongoing work at a steady, modest rate of use.
5 vials · 10ml vial
£21.99£4.40 per vial
- 5 × bacteriostatic water, 10ml vial
- £21.99
- Delivery
- £2.00
- Total
- £23.99
Add £8.01 more for free UK delivery.
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The figures for this pack
- Vials in the pack
- 5
- Total volume
- 50ml
- Draws across the pack
- 50
- Price per vial
- £4.40
Each sealed, 10ml vial
5 × 10ml
At 1ml each, or 25 at 2ml
43.98p per ml
Why five is the one most people come back for
It is the smallest pack where the per-vial price drops meaningfully against buying singly, and it is small enough that the vials do not sit around. Past this point you are buying on price rather than on need.
Buying five does not extend anything
The in-use window applies to each vial from its own first puncture, not to the pack as a whole. Five vials is five separate windows, each starting whenever you start it — which is why pack size and shelf life are independent decisions.
What this pack saves
Against buying 5 vials one at a time, at today’s single-vial price of £5.99.
- Bought singly
- £29.95
- This pack
- £21.99
- You save
- £7.96 (27%)
4 packs cost less per vial
Buying 10 vials instead works out at £3.50 a vial against £4.40 here — £0.90 less on every vial. If the exact number of vials is not fixed for you, that is the better buy, and we would rather say so than let you find out afterwards.
Every pack size
The same vial in every row. Only the quantity and the unit price change.
| Pack | Price | Per vial | Per ml | Saving |
|---|---|---|---|---|
| Single vial | £5.99 | £5.99 | 59.90p | — |
| 5 vials (this page) | £21.99 | £4.40 | 43.98p | 27% |
| 10 vials | £34.99 | £3.50 | 34.99p | 42% |
| 20 vials | £64.99 | £3.25 | 32.49p | 46% |
| 50 vials | £149.99 | £3.00 | 30.00p | 50% |
| 100 vialsBest value per vial | £274.99 | £2.75 | 27.50p | 54% |
Delivery on this pack
One pack sits below the free-delivery threshold of £30, so delivery is £2.00 on an order of one. It is shown in full before you pay.
Questions about this pack
Asked about this quantity specifically. The general questions about the product are on the FAQ page.
- How much cheaper is the 5-pack than buying five singles?
- Five vials bought one at a time would be £29.95. This pack is £21.99, a saving of £7.96 (27%). That is arithmetic against today's single-vial price, not a promotion.
- How much water is in a 5-pack?
- 50ml across 5 sealed vials, which is 50 draws at 1ml.
- Can I order more than one 5-pack?
- Yes, up to 10 packs in a single order, which is 50 vials. Beyond that the bulk page is the right place to start.
- Do all five vials have to be opened at once?
- No. Each vial is sealed separately and only starts its in-use window when it is first punctured. Unopened vials are unaffected by the ones beside them.
Specification
Identical on every pack size — it is one product, sold in different quantities.
- Composition
- Sterile water with a bacteriostatic preservative, in a sealed multi-dose vial.
- Format
- Sealed multi-dose vial, 10ml vial. This pack contains 5 of them, 50ml in total.
- Draws per vial
- 10 at 1ml, or 5 at 2ml. How many you get depends entirely on the volume taken each time.
- Storage
- 2–8°C, as printed on the label
- Once opened
- 28 days from first puncture
- Appearance
- Clear, colourless liquid, free of visible particles
- Also sold as
- bac water, bacteriostatic mixing water, mixing water, BAC water
Other pack sizes
Single vial
£5.99 · £5.99 per vial
A first order, a one-off requirement, or topping up a shelf that is nearly bare.
10 vials
£34.99 · £3.50 per vial
Steady, continuing use — a working stock rather than a purchase.
20 vials
£64.99 · £3.25 per vial
A laboratory or workshop covering months of continuing use in one order.
Prices last changed 2026-09-07. Single vial from £5.99.