The product is a spare membrane for CO2 built-in diffuser JBL PROFLORA CO2 TAIFUN INLINE and JBL ProFlora Direct. It has special ceramics for efficient diffusion. Switch off the filter, unscrew the diffuser, insert the diaphragm, screw the diffuser back on, switch on the filter. It is recommended to change the membrane annually due to the precipitation of the aquarium water.
Package contents: spare membrane for all sizes of JBL PROFLORA CO2 TAIFUN INLINE (12 / 16,16 / 22,19 / 25), incl. 2 sealing rings.