Pvc Encased Air Stone 16″ SKU: AS816 Category: Aquarium Accessories Related products Ammorid Insert Aquaclear 150 / 30 Aquafx 2ft Cabinet & Hood Black 24×12 Assembled (Pickup or local delivery only) Foam Base 12×18 (use for 18″ wide Tanks) (PKT 10) Aquafx Single Fish Breeding Net