DENNERLE CO2 plant fertilizer set MEHRWEG 600 Space for aquariums up to 600 liters

Complete set, consisting of: a reusable 2000g CO2 reusable supply bottle with stable safety base, an Evolution Space CO2 pressure reducer, a Maxi-Flipper CO2 feeder, a CO2 Special non-return valve, a 2 m CO2 hose, a CO2 long-term test Correct, a CO2 Special-Indicator, a wrench and an Allen key.