![Amazon.com: fishkeeper Ultra-Safe Intelligent Submersible Aquarium Heater 300W/500W/800W Electronic Precision Thermostat Fish Tank Heater with Run-Dry and Overheat Protection for 40~220 Gallon Fish Tank : Pet Supplies Amazon.com: fishkeeper Ultra-Safe Intelligent Submersible Aquarium Heater 300W/500W/800W Electronic Precision Thermostat Fish Tank Heater with Run-Dry and Overheat Protection for 40~220 Gallon Fish Tank : Pet Supplies](https://m.media-amazon.com/images/I/71hRoj5Q3PL.jpg)
Amazon.com: fishkeeper Ultra-Safe Intelligent Submersible Aquarium Heater 300W/500W/800W Electronic Precision Thermostat Fish Tank Heater with Run-Dry and Overheat Protection for 40~220 Gallon Fish Tank : Pet Supplies
![Amazon.com: hygger 500W Aquarium Heater for Fresh-Water Salt-Water, with External Digital Display Thermostat Controller and Thermometer, Auto Quartz Submersible Heater for Fish Tank 60-120 Gallon : Pet Supplies Amazon.com: hygger 500W Aquarium Heater for Fresh-Water Salt-Water, with External Digital Display Thermostat Controller and Thermometer, Auto Quartz Submersible Heater for Fish Tank 60-120 Gallon : Pet Supplies](https://m.media-amazon.com/images/I/61N1oa6ceFL.jpg)
Amazon.com: hygger 500W Aquarium Heater for Fresh-Water Salt-Water, with External Digital Display Thermostat Controller and Thermometer, Auto Quartz Submersible Heater for Fish Tank 60-120 Gallon : Pet Supplies
![Amazon.com: hygger 500W Aquarium Heater, Submersible Fish Tank Water Heater with External Color LED Digital Temperature Controller, Fast Heating for 60~120 Gallon : Everything Else Amazon.com: hygger 500W Aquarium Heater, Submersible Fish Tank Water Heater with External Color LED Digital Temperature Controller, Fast Heating for 60~120 Gallon : Everything Else](https://m.media-amazon.com/images/I/71NYC1gmfWL.jpg)
Amazon.com: hygger 500W Aquarium Heater, Submersible Fish Tank Water Heater with External Color LED Digital Temperature Controller, Fast Heating for 60~120 Gallon : Everything Else
![Amazon.com: ZHGSERVU 100W/300W/500W Aquarium Heater 500 Watt Fish Tank Heater Submersible Auto Thermostat Turtle Tank Heater 40-90 Gallon with Protective Sleeve and 3 Suckers : Pet Supplies Amazon.com: ZHGSERVU 100W/300W/500W Aquarium Heater 500 Watt Fish Tank Heater Submersible Auto Thermostat Turtle Tank Heater 40-90 Gallon with Protective Sleeve and 3 Suckers : Pet Supplies](https://m.media-amazon.com/images/I/61+my2BUkWL.jpg)
Amazon.com: ZHGSERVU 100W/300W/500W Aquarium Heater 500 Watt Fish Tank Heater Submersible Auto Thermostat Turtle Tank Heater 40-90 Gallon with Protective Sleeve and 3 Suckers : Pet Supplies
![Submersible Aquarium Heater, 300W/500W Fish Tank Heater with Accurate Temperature Control and Anti-Dry Burning Function, External Digital Controller, Suitable for Saltwater and Freshwater - Walmart.com Submersible Aquarium Heater, 300W/500W Fish Tank Heater with Accurate Temperature Control and Anti-Dry Burning Function, External Digital Controller, Suitable for Saltwater and Freshwater - Walmart.com](https://i5.walmartimages.com/asr/645494e3-e46c-4b75-9542-36bc370782bb.2ea4dcaf6256f0ed8da1dfb2f0c965a2.jpeg?odnHeight=612&odnWidth=612&odnBg=FFFFFF)
Submersible Aquarium Heater, 300W/500W Fish Tank Heater with Accurate Temperature Control and Anti-Dry Burning Function, External Digital Controller, Suitable for Saltwater and Freshwater - Walmart.com
![Amazon.com: hygger 500W Titanium Aquarium Heater for Salt Water and Fresh Water, Digital Submersible Heater with External IC Thermostat Controller and Thermometer, for Fish Tank 60-120 Gallon : Pet Supplies Amazon.com: hygger 500W Titanium Aquarium Heater for Salt Water and Fresh Water, Digital Submersible Heater with External IC Thermostat Controller and Thermometer, for Fish Tank 60-120 Gallon : Pet Supplies](https://m.media-amazon.com/images/I/61+fu-meRSL.jpg)
Amazon.com: hygger 500W Titanium Aquarium Heater for Salt Water and Fresh Water, Digital Submersible Heater with External IC Thermostat Controller and Thermometer, for Fish Tank 60-120 Gallon : Pet Supplies
![Amazon.com: U-picks Submersible Aquarium Heater 500W/300W/100W Fish Tank Heater with Dual Intelligent External LED Digital Temperature Displays and Controller for Turtle Betta Fish Tank 80-130 Gallon (500W) : Pet Supplies Amazon.com: U-picks Submersible Aquarium Heater 500W/300W/100W Fish Tank Heater with Dual Intelligent External LED Digital Temperature Displays and Controller for Turtle Betta Fish Tank 80-130 Gallon (500W) : Pet Supplies](https://m.media-amazon.com/images/I/51IkkjJpCgL.jpg)
Amazon.com: U-picks Submersible Aquarium Heater 500W/300W/100W Fish Tank Heater with Dual Intelligent External LED Digital Temperature Displays and Controller for Turtle Betta Fish Tank 80-130 Gallon (500W) : Pet Supplies
![Amazon.com: Aquatop 500W Titanium Heater with Controller - Fully Submersible For Fish Tanks Up To 150 Gallons, 68-92 Adjustable Temperature, Durable Water Heater, Aquarium Heater For Turtles & Large Fish, TH-C500 : Amazon.com: Aquatop 500W Titanium Heater with Controller - Fully Submersible For Fish Tanks Up To 150 Gallons, 68-92 Adjustable Temperature, Durable Water Heater, Aquarium Heater For Turtles & Large Fish, TH-C500 :](https://m.media-amazon.com/images/I/61-FPwT-CXL._AC_UF1000,1000_QL80_.jpg)
Amazon.com: Aquatop 500W Titanium Heater with Controller - Fully Submersible For Fish Tanks Up To 150 Gallons, 68-92 Adjustable Temperature, Durable Water Heater, Aquarium Heater For Turtles & Large Fish, TH-C500 :
![Amazon.com: hygger Aquarium Heater,500W/800W/1200W Submersible Fish Tank Water Heater Double Quartz Explosion-Proof with for Freshwater Saltwater Tank : Pet Supplies Amazon.com: hygger Aquarium Heater,500W/800W/1200W Submersible Fish Tank Water Heater Double Quartz Explosion-Proof with for Freshwater Saltwater Tank : Pet Supplies](https://m.media-amazon.com/images/I/61B2Or65EoL._AC_UF1000,1000_QL80_.jpg)
Amazon.com: hygger Aquarium Heater,500W/800W/1200W Submersible Fish Tank Water Heater Double Quartz Explosion-Proof with for Freshwater Saltwater Tank : Pet Supplies
![hygger 200 300W 500W Aquarium Heater with External Digital Temperature Controller Reef Saltwater Fish Tank Heater for 15-120 Gallon Tank hygger 200 300W 500W Aquarium Heater with External Digital Temperature Controller Reef Saltwater Fish Tank Heater for 15-120 Gallon Tank](https://www.gosupps.com/media/catalog/product/cache/25/image/1500x/040ec09b1e35df139433887a97daa66f/7/1/715OUKCAhbL._AC_SL1200_.jpg)
hygger 200 300W 500W Aquarium Heater with External Digital Temperature Controller Reef Saltwater Fish Tank Heater for 15-120 Gallon Tank
![Amazon.com: Soyon Aquarium Heater 500W, Fish Tank Heater with Adjustable Temperature 80 Gallon-100 Gallon Submersible Water Heater (500W with Extra Thermometer) : Pet Supplies Amazon.com: Soyon Aquarium Heater 500W, Fish Tank Heater with Adjustable Temperature 80 Gallon-100 Gallon Submersible Water Heater (500W with Extra Thermometer) : Pet Supplies](https://m.media-amazon.com/images/I/61TyV6p4kjL.jpg)
Amazon.com: Soyon Aquarium Heater 500W, Fish Tank Heater with Adjustable Temperature 80 Gallon-100 Gallon Submersible Water Heater (500W with Extra Thermometer) : Pet Supplies
![MUCH 500 Watt Aquarium Heater 40 gallon Fish Tank Heater Stainless Steel Salt Fresh Water Thermostat Intelligent LED Temp Controller,Silver - Walmart.com MUCH 500 Watt Aquarium Heater 40 gallon Fish Tank Heater Stainless Steel Salt Fresh Water Thermostat Intelligent LED Temp Controller,Silver - Walmart.com](https://i5.walmartimages.com/asr/df75b6d6-b735-4eb5-89c1-277b10022a3a.24b626f5d350f717ac673ef5b1d9d0b1.jpeg)
MUCH 500 Watt Aquarium Heater 40 gallon Fish Tank Heater Stainless Steel Salt Fresh Water Thermostat Intelligent LED Temp Controller,Silver - Walmart.com
![Amazon.com: HiTauing 200W/300W/500W Submersible Aquarium Heater for 20-130 Gallon - Upgraded Double Quartz Tubes Fish Tank Heater with HD Temperature Digital Display - Suitable for Freshwater and Saltwater : Pet Supplies Amazon.com: HiTauing 200W/300W/500W Submersible Aquarium Heater for 20-130 Gallon - Upgraded Double Quartz Tubes Fish Tank Heater with HD Temperature Digital Display - Suitable for Freshwater and Saltwater : Pet Supplies](https://m.media-amazon.com/images/I/71ES2zA-cBL._AC_UF1000,1000_QL80_.jpg)
Amazon.com: HiTauing 200W/300W/500W Submersible Aquarium Heater for 20-130 Gallon - Upgraded Double Quartz Tubes Fish Tank Heater with HD Temperature Digital Display - Suitable for Freshwater and Saltwater : Pet Supplies
![Amazon.com: hygger 60-120 Gallon Aquarium Heater with Digital Temp Controller Shatterproof Titanium Tube 500W Submersible Fish Tank Heater for Freshwater : Pet Supplies Amazon.com: hygger 60-120 Gallon Aquarium Heater with Digital Temp Controller Shatterproof Titanium Tube 500W Submersible Fish Tank Heater for Freshwater : Pet Supplies](https://m.media-amazon.com/images/I/71vcU7-ogEL.jpg)
Amazon.com: hygger 60-120 Gallon Aquarium Heater with Digital Temp Controller Shatterproof Titanium Tube 500W Submersible Fish Tank Heater for Freshwater : Pet Supplies
![Amazon.com : CORISRX 150w/300w/500w in-Line External Heater Aquarium Heater - 150/300/500 WATT 1/2",5/8" (Applied to Both Sizes) (Black 300 Watt 5/8",1/2" Hose) : Pet Supplies Amazon.com : CORISRX 150w/300w/500w in-Line External Heater Aquarium Heater - 150/300/500 WATT 1/2",5/8" (Applied to Both Sizes) (Black 300 Watt 5/8",1/2" Hose) : Pet Supplies](https://m.media-amazon.com/images/I/71NNX06B4bL.jpg)
Amazon.com : CORISRX 150w/300w/500w in-Line External Heater Aquarium Heater - 150/300/500 WATT 1/2",5/8" (Applied to Both Sizes) (Black 300 Watt 5/8",1/2" Hose) : Pet Supplies
![Amazon.com: MQ Titanium Alloy 500W Aquarium Heater for Salt and Fresh Water, Digital LED Display Submersible Heater with External Thermostat Controller, for Fish Tank 70-80 Gallon : Pet Supplies Amazon.com: MQ Titanium Alloy 500W Aquarium Heater for Salt and Fresh Water, Digital LED Display Submersible Heater with External Thermostat Controller, for Fish Tank 70-80 Gallon : Pet Supplies](https://m.media-amazon.com/images/I/71+g1NeW7yL._AC_UF1000,1000_QL80_.jpg)
Amazon.com: MQ Titanium Alloy 500W Aquarium Heater for Salt and Fresh Water, Digital LED Display Submersible Heater with External Thermostat Controller, for Fish Tank 70-80 Gallon : Pet Supplies
![Amazon.com: DaToo 500W Aquarium Heater PTC Fast Heating Fish Tank Heater 500 Watt Submersible with LED Digital Temperature Controller for 60 to 120 Gallon, 1 Yr Warranty : Pet Supplies Amazon.com: DaToo 500W Aquarium Heater PTC Fast Heating Fish Tank Heater 500 Watt Submersible with LED Digital Temperature Controller for 60 to 120 Gallon, 1 Yr Warranty : Pet Supplies](https://m.media-amazon.com/images/I/51TtwOEOrrL.jpg)
Amazon.com: DaToo 500W Aquarium Heater PTC Fast Heating Fish Tank Heater 500 Watt Submersible with LED Digital Temperature Controller for 60 to 120 Gallon, 1 Yr Warranty : Pet Supplies
![Amazon.com: hygger Fully Submersible 500 W Aquarium Heater with External Temperature Display Controller Upgraded Double Quartz Tubes Fish Tank Heater for 65-120 Gallon, Suitable for Marine and Freshwater : Pet Supplies Amazon.com: hygger Fully Submersible 500 W Aquarium Heater with External Temperature Display Controller Upgraded Double Quartz Tubes Fish Tank Heater for 65-120 Gallon, Suitable for Marine and Freshwater : Pet Supplies](https://m.media-amazon.com/images/I/71poUKffBTL.jpg)
Amazon.com: hygger Fully Submersible 500 W Aquarium Heater with External Temperature Display Controller Upgraded Double Quartz Tubes Fish Tank Heater for 65-120 Gallon, Suitable for Marine and Freshwater : Pet Supplies
![Amazon.com: HiTauing Aquarium Heater, 500W Fish Tank Heater with LED Digital Display & 5 Safety Protection, Submersible Aquarium Heater with 2 Suction Cup and 8.2Ft Cord for 75-120 Gallon Fish Tank. : Pet Supplies Amazon.com: HiTauing Aquarium Heater, 500W Fish Tank Heater with LED Digital Display & 5 Safety Protection, Submersible Aquarium Heater with 2 Suction Cup and 8.2Ft Cord for 75-120 Gallon Fish Tank. : Pet Supplies](https://m.media-amazon.com/images/I/71CKPlQPQ1L._AC_UF1000,1000_QL80_.jpg)