I have for sale an EHEIM CO2  500g Bottle (Reusable Carbon Dioxide for CO2 set) plus a matching EHEIM CO2 pressure reducer with dual manometers.

They are brand new (never been used), but the boxes have been opened. They come with all of the original accessories.

The retail price for this great combo is well over £230, so grab yourself a bargain. 

Please check my other listings for more aquarium equipment at a great price.