JBL ProSilent Aeras Micro S2 is a set of two spherical air stones for use in fresh and marine water aquaria.
JBL ProSilent Aeras Micro S2:Do you have questions about this article ?
+ made out of an extra fine pored silica sand mixture for outstanding fine air bubbles
+ containing 2 spherical aerator stones
+ diameter approx. 22 mm
+ weight of stone keeps it on ground without extra weighting
+ for fresh and salt water