The manufacturer informs: 

Kits for carbon dioxide fertilisation in fresh water. Whimar systems are made in Italy and are all equipped with pressure reducers with built-in safety valve and fine adjustment. 

The Primus series features a pressure reducer with general opening/closing knob, built-in non-return valve and outlet with fine adjustment possibility; it is also prepared for mounting high and low pressure gauges. 

The cylinder supplied with the system complies with the strictest European safety standards and the needle valve from which the CO2 escapes complies with ISO EN 13340. 

All systems are equipped with a diffuser with built-in bubble counter.

Il modello Complete include un manometro di alta pressione che, montato sul riduttore di pressione, consente di monitorare in tempo reale la carica residua della bombola ed un manometro di bassa che mostra la pressione con cui la CO2 viene immessa in vasca.  

The kit consists of: 

• 600g disposable CO2 cylinder with standard 10×1 pitch
  
• Primus pressure reducer
  
• Whimar diffuser with built-in bubble counter
  
• 1.5mt of black 4/6mm semi-rigid CO2 hose
• Whimar high and low pressure gauges
• instruction manual in Italian
  

All models are guaranteed for 3 years and comply with the strictest safety standards in accordance with protocol EN ISO 2503