100mm Coke Can Air Stone – Hydroponic Aeration Diffuser

Please sign in to see pricing

£0.50

Large 100mm cylindrical air stone for powerful aeration and circulation in hydroponic nutrient reservoirs and DWC systems.

The 100mm Coke Can Air Stone is a large porous air diffuser designed to introduce a continuous supply of bubbles into water or hydroponic nutrient solution. Its substantial cylindrical surface provides plenty of area for dispersing air, making it particularly useful in larger reservoirs and systems that need vigorous aeration.

Connect the air stone to a suitably powerful external air pump and position it below the surface of the nutrient solution. Air passes through the porous diffuser and emerges as bubbles, increasing aeration while helping to keep the surrounding solution moving.

The 100mm version measures approximately 100mm high by 50mm in diameter, giving it a larger diffusing body than the 70mm Coke Can Air Stone. It is a useful choice for DWC systems, bubbler systems and larger hydroponic nutrient reservoirs.

Why choose a 100mm Coke Can Air Stone?

  • Large cylindrical diffuser – provides a substantial porous surface for distributing air through nutrient solution.
  • Strong reservoir aeration – ideal for systems where a higher level of aeration is required.
  • Supports dissolved oxygen levels – helps maintain an oxygen-rich nutrient solution around hydroponic roots.
  • Encourages water movement – rising bubbles help circulate the surrounding nutrient solution.
  • Ideal for DWC – well suited to deep water culture, bubbler systems and larger nutrient reservoirs.
  • Suitable for multi-pot installations – several air stones can be supplied from a suitably sized air pump using an airline manifold.

What is a 100mm Coke Can Air Stone used for?

A Coke Can Air Stone is submerged in water or nutrient solution and supplied with air from an external pump. The porous body breaks the incoming airflow into bubbles rather than releasing air from a single open airline.

This makes the 100mm version particularly useful for hydroponic nutrient tanks and DWC systems where continuous aeration is needed around submerged roots. Its larger cylindrical body also makes it a practical option for bigger reservoirs where a small air stone may not provide the desired spread of bubbles.

Ideal for larger hydroponic reservoirs

At approximately 100mm high and 50mm in diameter, this is a sizeable air diffuser designed for use with a suitable high-output air pump. Positioning the air stone towards the bottom of a reservoir allows bubbles to rise through more of the nutrient solution before reaching the surface.

Several Coke Can Air Stones can also be incorporated into a larger aeration system. A suitable airline manifold allows one sufficiently powerful air pump or compressor to supply individual air stones across several reservoirs or growing positions.

How to use the 100mm Coke Can Air Stone

Connect the air stone to compatible airline running from a suitable external air pump or compressor. Place the air stone in the nutrient tank or reservoir, keeping the porous diffuser submerged and preferably positioned towards the bottom.

Switch on the air pump and check that bubbles are being produced through the diffuser. Coke Can Air Stones require a substantial air supply, with current UK hydroponic listings specifying approximately 5 – 10 litres of air per minute, so use a pump capable of providing the required airflow.

If the air stone is being used as part of a multi-outlet system, remember that the pump's total output is shared between all connected diffusers. The air pump therefore needs to be sized for the complete aeration setup rather than for a single air stone.

Over time, deposits can restrict the porous surface and reduce bubble production. Keeping the diffuser clean and checking the airline for kinks or blockages will help maintain consistent performance.

Product details

Product type Air stone / air diffuser
Style Coke can / cylindrical
Height 100mm
Diameter 50mm
Recommended airflow Approximately 5 – 10 litres per minute
Operation Connects to a suitable external air pump or compressor
Typical applications Hydroponic reservoirs, nutrient tanks, DWC & bubbler systems
Air pump included No
Airline included No

100mm Coke Can Air Stone FAQs

What size is the 100mm Coke Can Air Stone?

This larger Coke Can Air Stone measures approximately 100mm high and 50mm in diameter.

What does a Coke Can Air Stone do?

It takes air supplied by an external pump and disperses it through its porous surface as bubbles, helping to aerate and circulate water or hydroponic nutrient solution.

How much airflow does a Coke Can Air Stone need?

Current UK hydroponic listings specify approximately 5 – 10 litres of air per minute for Coke Can Air Stones. A suitably sized air pump should therefore be used to achieve effective aeration.

Is the 100mm Coke Can Air Stone suitable for DWC?

Yes. Its large cylindrical diffusing surface makes it particularly useful for aerating nutrient solution in deep water culture systems.

Can I use this air stone in a large nutrient reservoir?

Yes. The 100mm Coke Can Air Stone is well suited to larger hydroponic nutrient tanks and reservoirs where a substantial diffusing surface is useful.

Where should I position the air stone?

Position the air stone below the surface of the nutrient solution, preferably towards the bottom of the reservoir. This allows the bubbles to rise through more of the solution before reaching the surface.

Can I run several 100mm Coke Can Air Stones from one pump?

Yes, provided the air pump has enough total output for all of the connected air stones. A suitable airline manifold can be used to divide the main air supply between several diffusers.

Why is my air stone producing fewer bubbles?

Reduced bubble production can be caused by insufficient pump output, restricted airline or deposits building up within the porous diffuser. Check the airline and pump first, then clean the air stone if its surface has become restricted.

Does the 100mm Coke Can Air Stone include a pump or airline?

No. The air stone is supplied separately and requires compatible airline and a suitably sized external air pump or compressor.

Pay with

  • American Express
  • Apple Pay
  • Diners Club
  • Discover
  • Google Pay
  • Klarna
  • Maestro
  • Mastercard
  • Shop Pay
  • Union Pay
  • Visa

Your transaction is protected with advanced security measures to keep your information confidential

£0.50