Foam Base 12×18 (use for 18″ wide Tanks) (PKT 10) Convenient size to fit most tanks SKU: AFB1218 Category: Aquarium Accessories Related products Ammorid Insert Aquaclear 200 / 50 Foam Insert Aquaclear 150 / 30 Aquafx Double Fish Breeding Net Ammorid Insert Aquaclear 150 / 30