Aqua One Fish Tank 300w Heater | Fast Aquarium Spares from Fish Pets Reptiles
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hygger 300W Watt Aquarium Heater with LED Digital Temperature Controller, Submersible Fish Tank Water Heater for 110-450L Tank (300 W) : Amazon.co.uk: Pet Supplies
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T7Design | 12v 300w RoadPro Electric Heater
Smart controlled heating | EHEIM GmbH & Co. KG. Leading aquarium manufacturer.