Find Reviews and Compare Prices for:       All ProductsHeaters     5.0 (1)   Add a review API RENA Cal Top Light Excel Heater 300W   For 15 to 35 gallon aquariums. Illuminated top and side temperature readings. Fully submersible; water-tight triple seal. Computer-calibrated temperature control. High thermal diffusion for efficient heating. 500-micron... Have a question? Just Ask! Member Reviews Compare Prices Product Spec Send to a friend Category Rena AqueonAzooEheim JagerFinnexFluvalHagenHydorMarinelandRenaReplacements & AccessoriesViaAquaVisi-ThermWon BrothersTetra--------Suggest a new option Something wrong in this page? Let us know! Related products: More Rena Heaters Other Heaters internal use: spec362