JBL ProFlora m500 SILVER CO2-Cylinder filled with 500 g CO2-gass. With external valve (W21.8 x 1/14) and cage. Suitable for the JBL CO2-system (m-system) or any other CO2-system with refillable cylinders..https://www.aquaristikshop.com/aquaristic/JBL-ProFlora-m500-SILVER-CO2-Cylinder/128002/
- Aliaksei G. wrote about JBL ProFlora m500 SILVER CO2 Cylinder in 2016:
Very much high quality of the cylinder. Pleasantly looks and it is easy in use.