JBL ProSilent Aeras Micro S3

Set of 3 coloured air stones for fine air bubbles in aquariums Air pump accessory for aquariums: air stone made of quartz sand mixture with extra-fine pores - for extra fine air bubbles Simply connect air stone to the air pump (not included), place inside the aquarium Large surface (26 x 14 mm) because of cylindrical shape For fresh and saltwater aquariums: 3 coloured air stones Package contents: 3 air stones for fine air bubbles, Ø 14 mm