"The Pump" has been made by Hagan under license from a Japanese model that's been around for years...The "Hi-Blow". It's been made by a few different companies now and given a variety of names...but essentially it's the same bit of kit. Apart from keeping my 4 tanks of Cichlids, I also have been keeping a Koi carp pond for 9 years and during that time, my "PUMP" has worked non-stop 24-7...supplying 6 x 15 metre distance lines at a very powerful flow rate...it also has some left over to aerate my growing on/quarantine tanks. Theyr'e not cheap to buy...however they last forever...only now am I looking to start replacing some wearing interior parts...as the flow is only now starting to slow slightly. I would highly recommend The Pump to anyone running a fish house or multi-tank senerio...though perhaps some might find it's hum a bit loud for the living room..its a solid, reliable, tried & tested design...and outlasted all my other branded air pumps by a long distance..worth the money!