Find the lowest price for:       All ProductsHeaters     0.0 (0)   Add a review Hydor ETH 300 Inline External Heater 300W   ETH In-Line Heater 300 watt by Hydor. Compact in-line heater operates externally, saving interior aquarium space Have a question? Ask the Experts! Set Price Alert Compare Prices Product Spec Member Reviews Recommend to Friends Searched Hydor ETH 300 Inline External Heater 300W in 150 stores, 17 results found Image Description   Store   Price Hydor inline heater ETH 300 lightly used If this item doesn't belong here, click Remove and help us keep our results accurate.   eBay (auction)   3 Store Reviews   $30 (used) Go to Store Eth 300 300 Watt Line Heater 5/8" - Hydor USA Inc If this item doesn't belong here, click Remove and help us keep our results accurate.   PetBlvd.com   0 Store Reviews   $43.96 Go to Store Hydor ETH 300 In-Line Heater UL 300W f/16mm & 5/8" Hose If this item doesn't belong here, click Remove and help us keep our results accurate.   Premium Aquatics   1 Store Reviews   $44.95 Go to Store Eth 300W In-Line Heater (NEW) If this item doesn't belong here, click Remove and help us keep our results accurate.   eBay   3 Store Reviews   $45.99 Go to Store ETH 300W External Thermal Aquarium Heater for 5/8" hose If this item doesn't belong here, click Remove and help us keep our results accurate.   everythingreptileinc.com   0 Store Reviews   $46.76 Go to Store Hydor ETH-300 External Thermal Aquarium Heater 300watts If this item doesn't belong here, click Remove and help us keep our results accurate.   eBay   3 Store Reviews   $47.99 Go to Store ETH 300 In-Line Heater UL 300W f/16mm & 5/8" Hose If this item doesn't belong here, click Remove and help us keep our results accurate.   Amazon.com   1 Store Reviews   $47.99 Go to Store Hydor ETH 300 EXTERNAL In-Line HEATER 300w New Product! If this item doesn't belong here, click Remove and help us keep our results accurate.   eBay   3 Store Reviews   $48.99 Go to Store EXTENAL THERMAL HEATER, ETH 300 (300w) BY HYDOR If this item doesn't belong here, click Remove and help us keep our results accurate.   eBay   3 Store Reviews   $49.9 Go to Store Hydor InLine Aquarium Heater, 300W If this item doesn't belong here, click Remove and help us keep our results accurate.   Amazon.com   1 Store Reviews   $49.99 Go to Store Hydor ETH 300 5/8" 300W In-Line Heater If this item doesn't belong here, click Remove and help us keep our results accurate.   Big Al's Online   0 Store Reviews   $52.99 Go to Store Hydor ETH 300 Watt External Thermal Aquarium Heater for 5/8" If this item doesn't belong here, click Remove and help us keep our results accurate.   onlinepetdepot.com   0 Store Reviews   $54.19 Go to Store ETH 300 In-Line Heater for 16mm or 5/8 in. Tubing - 300W If this item doesn't belong here, click Remove and help us keep our results accurate.   That Fish Place That Pet Place   3 Store Reviews   $54.89 Go to Store Hydor ETH In-Line Heater 300 watt for Aquariums If this item doesn't belong here, click Remove and help us keep our results accurate.   Drs. Foster and Smith   7 Store Reviews   $54.99 Go to Store Hydor ETH300 300W LINE HEATER 5/8 in If this item doesn't belong here, click Remove and help us keep our results accurate.   Pets Warehouse   0 Store Reviews   $63.3 Go to Store Hydor'S Usa 300 Watt Eth 300 In-Line Heater Ul 5/8 If this item doesn't belong here, click Remove and help us keep our results accurate.   StrictlyPetSupplies.com   0 Store Reviews   $63.78 Go to Store Eth300 300 Watt External In - line Heater For 5/8" Hose If this item doesn't belong here, click Remove and help us keep our results accurate.   Amazon.com   1 Store Reviews   $64.99 Go to Store Are we missing a store? Let us know! Something wrong in this page? Let us know! Related products: More Hydor Heaters Other Heaters internal use: spec361