CO2 Products CO2 Regulators Regulators we supply are of the highest quality. The main body and fittings have an entirely brass construction. Learn More CO2 Gas Take the guess work out of CO2 enrichment with a controller designed to keep CO2 at optimum levels throughout the cycle. Learn More CO2 Controller Take the guess work out of CO2 enrichment with a controller designed to keep CO2 at optimum levels throughout the cycle. Learn More Fire Extinguishers CO2 filled 2kg and 5kg fire extinguishers from the UK’s premier manufacturer. Learn More All Questions Answered Contact Us Frequently Asked Questions Do I need special equipment to use bottled CO2? For managed release you will require a regulator. The regulator allows for the controlled release of the gas to infuse the air or liquid. How should I store the cylinders? Cylinders should be stored upright in a well ventilated area. Do you sell CO2 cylinders? No. A deposit is required for the cylinders and they remain the property of Titchmarsh you pay for the gas within.