Find Reviews and Compare Prices for:       All ProductsFilters     0.0 (0)   Add a review Hagen Fluval 4 Plus In Tank Aquarium Internal Filter 260 GPH   The Fluval 4 Plus Internal Filter is a powerful and economical submersible filter. It is easy to care for, quiet, and effective. The Fluval 4 Plus Internal Filter is a great aquarium filter for any small aquarium, turtle... Have a question? Just Ask! Member Reviews Compare Prices Product Spec Send to a friend Category Internal & Undergravel Filters Canister FiltersFluidized Bed FilterHang-On FiltersInternal & Undergravel FiltersReplacements & AccessoriesSpecialty FiltersWet/Dry Filters--------Suggest a new option Something wrong in this page? Let us know! Related products: More Internal & Undergravel Filters Filters Other Filters internal use: spec350