Foam Base 12×18 (use for 18″ wide Tanks) (PKT 10) Convenient size to fit most tanks SKU: AFB1218 Category: Aquarium Accessories Related products Aquafx 4ft Cabinet & Hood White 48×18 Assembled (Pickup or local delivery only) Foam Insert Aquaclear 300 / 70 2in1 Fish Hatchery Aquafx Single Fish Breeding Net