Houston - Freshwater aquarium GLA co2 system - $320
I am selling everything together as you will need each of these items if you are going to have a CO2 setup. Only been used couple months. Great condition.
The total retail price for these items is $394. Links of the items below with pictures and descriptions.
CO2 Tank(5lb) and Regulator - Retail $305
CO2 Inline Diffuser - Retail $39
Drop Checker - Retail $50
Will throw in some bags of plant fertilizers too.