Aquafx Check Valve SKU: FXCV63 Category: Aquarium Accessories Related products Ammorid Insert Aquaclear 200 / 50 Aquafx 3ft Cabinet & Hood Black 36×15 Assembled (Pickup or local delivery only) Foam Insert Aquaclear Mini / 20 Foam Base 12×18 (use for 18″ wide Tanks) (PKT 10)