At Uncle Bill’s Pet Center, we not only offer Penn Plax filters and refills for sale, we also employ a highly trained staff that can assist you in finding an appropriate equipment for your tank. These Penn-Plax Filt-a-Carb "E" Carbon Undergravel Filter Cartridges fit the Penn-Plax Premium Undergravel Filters. For best results the Cartridge should be replaced every two to four weeks. We will be glad to work with you to ensure that you use suitable aquarium equipment for optimal health and happiness of the inhabitants of your tank and by providing the best selection and value on premium filters and refills for sale in Indiana.
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