This powerful easy to use external filter is complemented with a 500w heater now you can easily heat and filter large aquariums with the same device a precise lcd display shows you the exact water temperature large pre filter for easy intermediate cleaning and a long life span new priming intake principle 3 hose attachments 2x intake side 1x pressure side for perfect circulation in large aquariums rectangular form for enormous filter volume and structural integrity detachable hose adapter