fishkeeper 1000W Submersible Aquarium Heater – Ultra-Safe Digital Fish Tank Heater for 135-280Gal, Leaving Water Auto Power-Off, PID Intelligent Fast Heating, 59°F-93°F Accurate Temperature Control

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About This ✦【Powerful & Precise Heating for Large Tanks】This 1000W adjustable aquarium water heater is professionally designed for 135 - 280 gallon fish tanks, ensuring fast and ev en heating. The 10.8" heating element ensures optimal heat distribution throughout your aquarium; with a wide temperature range (59°F–93°F) and ±1°F accuracy, keeps your aquatic pets comfortable year-round. ✦【Never Explode & Ultra-Safe Design】Unlike fragile glass heaters, our submersible fish tank heater design with stainless steel heating core ✚ 6 quartz tubes, provides double explosion-proof protection. Built to last, it resists cracks and corrosion, making it safer for saltwater & freshwater tanks. ✦【Smart PID Chip – Saves Energy & Heats Faster】The intelligent PID system adjusts power automatically—full power for quick heating, then reduces energy to maintain temperature. Saves 40% more electricity than traditional heaters while keeping temperatures stable. ✦【Six Safety Protections for Peace of Mind】✅ Automatic power-off when leaving water; ✅Overheat protection; ✅ Low-temp protection prevents sudden drops; ✅ Power-off memory (remembers your last setting); ✅Double explosion-proof & Anti-scalding hell design; ✅ UL-certified safety for worry-free use. ✦【Easy-to-Use Digital Display & External Control】 The bright LED screen shows real-time and set temperatures. Adjust settings easily with the external controller—no wet hands needed! Switch between ℉/℃ with one button. Show more