Hydor ETH 300 In-Line External Aquarium Heater, 300w, 5/8" hose

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Feature

Suitable for marine and tropical aquariums
Easy to use
High precision electronic temperature control
For external use
5/8 inch hose

Description

ETH Heaters are the first external heaters for aquariums with the exclusive PTC technology. The self-limiting PTC heating element guarantees maximum safety against any risk of overheating. Designed to be used on return lines coming from canister filters or sumps.