Rubber Flex. Air Stone 60cm SKU: FRS60 Category: Aquarium Accessories Related products Foam Base 12×18 (use for 18″ wide Tanks) (PKT 10) Aquafx 2ft Cabinet & Hood Black 24×12 Assembled (Pickup or local delivery only) Foam Insert Aquaclear 300 / 70 Foam Insert Aquaclear 200 /50