Air & Gas fills - 2025 prices

The Harbourside has a state-of-the-art gas mixing station. We can provide O2 clean air, Nitrox and Trimix on site.

We keep a good stock of helium and oxygen banked. We always have premixed gases but the blends may vary. Our opening hours are at your convenience - get in touch and let us know.

Air fills​

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Air fill - 232 bar:

All air is O2 clean

• 3-7 litres – £5

• 10-15 litres – £8

• Twins – £14

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Air fill - 300 bar:

• 3-7 litres – £6

• 10-15 litres – £10

• Twins – £16

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Gas prices

All gases are sold per litre and are diving-grade quality

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Pure gases (per litre)

• Oxygen - 3.5p

• Helium - 6.5p

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Premixed gases (per litre) - stocked gases may vary

• Heliair (10/50) - 3.8p

• Trimix (18/40) - 3p

• Trimix (18/35) - 2.8p

• Trimix (18/30) - 2.6p

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O2 clean air tops: (Nitrox and Trimix fills require air tops)​

• 3 litres - £5

• 7 litres – £6

• 10-15 litres – £7

• Twins – £10

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Cylinders and extra weights can be hired, subject to availability - please get in touch.

Please enquire by email directly to Iain at info@marinequest.co.uk​