Aquarium Co2 Cylinders
All Co2 Bottles/Cylinders we Supply are Rent Free
Co2 is held in its liquid form by the pressure of the gas.
When the gas is drawn off the liquid evaporates until an equilibrium is created at approximately 57 bar (830psi). It is for this reason your Co2 regulator will not show the amount of gas left in the cylinder as the regulator will only show the pressure not the amount of liquid Co2 remaining in the cylinder.
Our cylinder only contain 'food
grade' Co2 as supplied to restaurants, pubs, clubs etc. and do not
contain low grade Co2 used in Fire Extinguishers, why risk damaging you healthy plants & fish with cheap low grade Co2
Co2 cylinders contain liquid Co2 and are sold by weight, the sizes we stock are:-
Small about 520mm high 3kg of Co2,
Pub size about 830mm high 6.35 kg.
Short about 650mm high 6kg of Co2.
Large 1200mm X 175mm 22.5kg of Co2
All cylinders must have a safety certificate which will be held by the person or company who had the cylinder tested, the plastic disc between the valve and cylinder body states the 'Retest (year) the month is usually numbers round the edge 1 to 12 with a mark or stamp on the relevant month. The test could be 5 or 10 years, no cylinder can be filled with out a current test
Out of date cylinders can be part exchanged against a new cylinder but cannot be filled
Please read these guides before purchasing or handling your pressurized cylinders
Collection only from
Purchasing Cylinders You can pay:
Cash on collection
Website: Press 'Buy Now' button
eBay: see Our eBay Listings 'Buy Now' button
Pressing the 'Buy Now' button transfers you to the secure website where you can pay securely using PayPal or your Credit/Debit Card NO information regarding any purchase is retained or processed on this site
£45.00 Plus £20.00 for Gas
Half Size 520mm High
3.00kg Co2 Cylinders
£55.00 Including Co2 Gas Refills only £15
Q. How much gas is in 1 kilogram of liquid Co2?
A. 1 kg of liquid Co2 expands to about
550 litres of Co2 gas at atmospheric pressure
Trade in your old cylinder for up to £30 Discount
off a new fully tested cylinder
Standard Co2 fittings means they can be filled anywhere
'Rent Free' The Label Says So
Yorkshire Co2 Gas Supplying Food Grade Co2 Gas
Co2 Cylinders now being refilled in Sheffield
See side panel