A friend of mine owns an aquarium maintenance company and one of his accounts is the home office of the local water reclamation. They have two massive native fish tanks, 1500 and 2700 gallons. Every Sunday he puts on his Wadders and goes scrubbing. That process just got a little easier with this siphon. 6" diameter 38" tall and uses a 1.5" drain hose. I think that qualifies for worlds largest but we need to check with Guinness.
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