Pvc Encased Air Stone 20″ SKU: AS820 Category: Aquarium Accessories Related products Foam Insert Aquaclear Mini / 20 Aquafx 3ft Cabinet & Hood White 36×15 Assembled (Pickup or local delivery only) Aquafx 4ft Cabinet & Hood White 48×18 Assembled (Pickup or local delivery only) Foam Insert Aquaclear 300 / 70