Finest-Filters Ista CO2 Refillable Cylinder Carbon Dioxide for Planted Aquarium Aquascape (3 Litre)

• Ista’s CO2 Cylinders are made from quality aluminum to make them incredibly hardwearing and long lasting. The bottles are prefilled but also refillable, so they can be used over and over again.
• The Ista Cylinders have been approved by the Technical Inspection Association (TUV) for safety standards, providing peace of mind during use.
• All Thread Sizes: ½” BSP (20.99mm external diameter)

Ista CO2 Refillable Cylinder Carbon Dioxide for Planted Aquarium Aquascape Ista’s CO2 Cylinders are made from quality aluminum to make them incredibly hardwearing and long lasting. The bottles are prefilled but also refillable, so they can be used over and over again. The Ista Cylinders have been approved by the Technical Inspection Association (TUV) for safety standards, providing peace of mind during use. The thread is mounted on the top of the bottle so a downward facing regulator (not included) would be needed. We have these cylinders available in four sizes: 500ml, 1 Litre, 2 Litre and 3 Litre. Please select from the dropdown menu. All Thread Sizes: ½” BSP (20.99mm external diameter) Dimensions 500ml - 27cm x 6.5cm 1 Litre - 30cm x 8.5mm 2 Litre - 33cm x 11.5cm 3 Litre - 45cm x 11.5cm