Continue shopping “Penn Plax Filt-a-Carb Undertow and Perfect-A-Flow Carbon Under Gravel Filter Cartridge” has been added to your cart. Remove item Thumbnail image Product Price Quantity Subtotal × Penn Plax Filt-a-Carb Undertow and Perfect-A-Flow Carbon Under Gravel Filter Cartridge $3.00 Penn Plax Filt-a-Carb Undertow and Perfect-A-Flow Carbon Under Gravel Filter Cartridge quantity $3.00 Coupon: Apply coupon Update cart Cart totals Subtotal $3.00 Shipping Flat rate: $12.99 Shipping to MA. Change address Country / region: Select a country / region… United States (US) State / County: Select an option… AlabamaAlaskaArizonaArkansasCaliforniaColoradoConnecticutDelawareDistrict Of ColumbiaFloridaGeorgiaHawaiiIdahoIllinoisIndianaIowaKansasKentuckyLouisianaMaineMarylandMassachusettsMichiganMinnesotaMississippiMissouriMontanaNebraskaNevadaNew HampshireNew JerseyNew MexicoNew YorkNorth CarolinaNorth DakotaOhioOklahomaOregonPennsylvaniaRhode IslandSouth CarolinaSouth DakotaTennesseeTexasUtahVermontVirginiaWashingtonWest VirginiaWisconsinWyomingArmed Forces (AA)Armed Forces (AE)Armed Forces (AP) City: Postcode / ZIP: Update Tax $0.00 Total $15.99 Proceed to checkout