“Penn Plax Filt-a-Carb Universal Carbon Under Gravel Filter Cartridge” has been added to your cart. Continue shopping Remove item Thumbnail image Product Price Quantity Subtotal × Penn Plax Filt-a-Carb Universal Carbon Under Gravel Filter Cartridge $5.19 Penn Plax Filt-a-Carb Universal Carbon Under Gravel Filter Cartridge quantity $5.19 Coupon: Apply coupon Update cart Cart totals Subtotal $5.19 Shipping Flat rate: $12.99 Shipping to MA. Change address Country / region Select a country / region… United States (US) State * Select an option…AlabamaAlaskaArizonaArkansasCaliforniaColoradoConnecticutDelawareDistrict of ColumbiaFloridaGeorgiaHawaiiIdahoIllinoisIndianaIowaKansasKentuckyLouisianaMaineMarylandMassachusettsMichiganMinnesotaMississippiMissouriMontanaNebraskaNevadaNew HampshireNew JerseyNew MexicoNew YorkNorth CarolinaNorth DakotaOhioOklahomaOregonPennsylvaniaRhode IslandSouth CarolinaSouth DakotaTennesseeTexasUtahVermontVirginiaWashingtonWest VirginiaWisconsinWyomingArmed Forces (AA)Armed Forces (AE)Armed Forces (AP) Town / City * ZIP Code * Update Tax $0.00 Total $18.18 Proceed to checkout